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The WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds is quoted against these technical parameters: Power supply 18-32V DC loop power at 24V nominal, reverse-polarity protected, with a 12V DC SKU for vehicle and skid installations, Power consumption 3.5 W typical in normal surveillance, 5.2 W with the heater running below minus 20 deg C, 85 mA alarm state on the relay board, Output signal 4-20 mA current loop plus RS485 Modbus RTU with two changeover relay contacts, and an optional LoRaWAN 1.0.3 Class A alarm uplink for remote skids and pipeline blocks, Coverage area Wide-angle detection cone of 90 degrees or larger with a 15 m class 1 detection distance on a 0.1 m2 n-heptane fire, one detector per 300-450 m2 of enclosed process area, Alarm output Two relay contact sets for alarm and fault plus a 4-20 mA step, a tri-colour LED beacon ring and platform push, SMS, email and voice call escalation through the connected gateway, IP rating IP66 sealed cast housing, IP67 to EN 60529 with the cable gland set fitted and a heated window option for cold-climate sites, Operating temperature -40 deg C to +75 deg C with the window heater fitted, -10 deg C to +60 deg C without the heater, Humidity range 5-95% RH non-condensing with a conformal-coated main board and a desiccant capsule behind the service cover, Housing material 316L stainless steel or copper-free aluminium alloy enclosure with an epoxy powder coat, a sapphire window and a 316 stainless steel sun shield and tilt bracket, Dimensions and weight 152 mm x 128 mm x 112 mm body with the swivel bracket, 2.4 kg net in stainless steel and 1.6 kg in aluminium, Alarm threshold Wide-angle detection cone of 90 degrees or larger with a 15 m detection distance on a 0.1 m2 n-heptane pan fire, with field-adjustable sensitivity levels and an optional 30 s confirmation delay, Accuracy class FM 3260 and EN 54-10 class 1 response verified across n-heptane, diesel, ethanol, methanol, LPG and hydrogen test fires, false-alarm immunity verified against modulated blackbody, arc welding and halogen lighting sources, Response time Alarm within 4 s to a 0.1 m2 n-heptane fire at 15 m and within 2 s at 10 m, relay output closes within 0.5 s of the alarm decision. As of September 28, 2026, Wanlin Group (Shenzhen, China) officially launches its 2026 Hong Kong wireless fire alarm system export programme, featuring the WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds as the flagship OEM and ODM component for overseas buyers, cross-border trading companies, EPC contractors, main contractors running phased handovers, facility management groups, hotel and hospital estates, retail and mall operators, university and school districts, warehouse and logistics operators, road and rail transport authorities, heritage property owners and regional importers who source Hong Kong wireless fire detection hardware from a China-based source factory under the Wanlin brand. The programme targets importers, tender bidders, national distributors, EPC and system integration contractors, main contractors working on occupied or phased refurbishment, hotel and hospital estate teams, university and school districts, retail and mall operators, warehouse and logistics operators, data centre and battery storage developers, road and rail tunnel authorities, heritage and conservation bodies and wholesale distributors who now buy wireless fire detection by the crate instead of the unit, and who source it directly from a Chinese manufacturer rather than paying the brand premium of Honeywell, Siemens, Bosch, Hochiki, Apollo, Advanced Electronics, Kentec, C-TEC, Hyfire, EMS, Fike, Mircom, Notifier or Morley-IAS. Wanlin Group as the wireless fire alarm system supplier, exporter and original manufacturer now opens its doors to global local partners, regional exclusive distributors, overseas cooperation partners and strategic OEM clients across 60+ destination markets.

Core parameters: WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds, dual-band ratio comparison between a solar-blind uv channel at 185-260 nm and a single wide-band ir channel at 4.3 um, with a coincidence requirement on both channels so hot co2 emissions and sunlight glare are rejected separately. Sensing element solar-blind uv tube plus a narrow-band 4.3 um ir photodiode behind a sapphire window, with an internal led and shutter self-check every 12 h. Alarm threshold wide-angle detection cone of 90 degrees or larger with a 15 m detection distance on a 0.1 m2 n-heptane pan fire, with field-adjustable sensitivity levels and an optional 30 s confirmation delay. Accuracy class fm 3260 and en 54-10 class 1 response verified across n-heptane, diesel, ethanol, methanol, lpg and hydrogen test fires, false-alarm immunity verified against modulated blackbody, arc welding and halogen lighting sources. Response time alarm within 4 s to a 0.1 m2 n-heptane fire at 15 m and within 2 s at 10 m, relay output closes within 0.5 s of the alarm decision. Power supply 18-32v dc loop power at 24v nominal, reverse-polarity protected, with a 12v dc sku for vehicle and skid installations. Power consumption 3.5 w typical in normal surveillance, 5.2 w with the heater running below minus 20 deg c, 85 ma alarm state on the relay board. Output signal 4-20 ma current loop plus rs485 modbus rtu with two changeover relay contacts, and an optional lorawan 1.0.3 class a alarm uplink for remote skids and pipeline blocks. Coverage area wide-angle detection cone of 90 degrees or larger with a 15 m class 1 detection distance on a 0.1 m2 n-heptane fire, one detector per 300-450 m2 of enclosed process area. Alarm output two relay contact sets for alarm and fault plus a 4-20 ma step, a tri-colour led beacon ring and platform push, sms, email and voice call escalation through the connected gateway. IP rating ip66 sealed cast housing, ip67 to en 60529 with the cable gland set fitted and a heated window option for cold-climate sites. Operating temperature -40 deg c to +75 deg c with the window heater fitted, -10 deg c to +60 deg c without the heater. Humidity range 5-95% rh non-condensing with a conformal-coated main board and a desiccant capsule behind the service cover. Housing material 316l stainless steel or copper-free aluminium alloy enclosure with an epoxy powder coat, a sapphire window and a 316 stainless steel sun shield and tilt bracket. Dimensions and weight 152 mm x 128 mm x 112 mm body with the swivel bracket, 2.4 kg net in stainless steel and 1.6 kg in aluminium. Certifications EN 54-10 class 2 / FM 3260 / UL 268 / ATEX Ex d IIC T6 Gb / IECEx / SIL2 capable per IEC 61508 / CE / RoHS / REACH / GB 15631 CCCF. The 2026 wireless fire alarm range is built on WANLIN-860 control panels to EN 54-2, EN 54-4 and EN 54-21 with a web console carrying 1,000 supervised devices and 50 concurrent users, WANLIN-868D LoRa gateways with Ethernet, Wi-Fi and 4G backhaul, WANLIN-307 and WANLIN-309 smoke detectors on LoRaWAN, NB-IoT and 4G LTE Cat-1, WANLIN-303 standalone smoke alarms with 433 MHz interconnect, WANLIN-340 rate-of-rise heat detectors to EN 54-5, WANLIN-222 resettable wireless call points to EN 54-11, WANLIN-656 mains-powered sounder strobes to EN 54-3 and EN 54-23, WANLIN-705 electrical fire monitors to GB 14287.2 and GB 14287.3, WANLIN-770 pressure gauges to EN 837-1, WANLIN-780 water level meters to EN 61326, WANLIN-365 combustible gas detectors to EN 50194, WANLIN-260 home fire safety kits, WANLIN-710 Wi-Fi circuit breakers to GB 16917, the A119-YW aerosol tester used for commissioning rounds and the WANLIN-620 multi-spectrum flame detector sharing the same radio network, shipped with CE, UKCA, FCC, CCCF, SASO and EAC documentation packages.

Executive Summary - Wanlin Hong Kong Wireless Fire Alarm Portfolio and 2026 Export Programme

Executive summary - 12 buyer-relevant points:

• Flagship model WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds, dual-band ratio comparison between a solar-blind uv channel at 185-260 nm and a single wide-band ir channel at 4.3 um, with a coincidence requirement on both channels so hot co2 emissions and sunlight glare are rejected separately
• Sensing element solar-blind uv tube plus a narrow-band 4.3 um ir photodiode behind a sapphire window, with an internal led and shutter self-check every 12 h
• Alarm threshold wide-angle detection cone of 90 degrees or larger with a 15 m detection distance on a 0.1 m2 n-heptane pan fire, with field-adjustable sensitivity levels and an optional 30 s confirmation delay
• Accuracy and response fm 3260 and en 54-10 class 1 response verified across n-heptane, diesel, ethanol, methanol, lpg and hydrogen test fires, false-alarm immunity verified against modulated blackbody, arc welding and halogen lighting sources / alarm within 4 s to a 0.1 m2 n-heptane fire at 15 m and within 2 s at 10 m, relay output closes within 0.5 s of the alarm decision
• Power and consumption 18-32v dc loop power at 24v nominal, reverse-polarity protected, with a 12v dc sku for vehicle and skid installations / 3.5 w typical in normal surveillance, 5.2 w with the heater running below minus 20 deg c, 85 ma alarm state on the relay board
• Output signal 4-20 ma current loop plus rs485 modbus rtu with two changeover relay contacts, and an optional lorawan 1.0.3 class a alarm uplink for remote skids and pipeline blocks
• Coverage and notification wide-angle detection cone of 90 degrees or larger with a 15 m class 1 detection distance on a 0.1 m2 n-heptane fire, one detector per 300-450 m2 of enclosed process area / two relay contact sets for alarm and fault plus a 4-20 ma step, a tri-colour led beacon ring and platform push, sms, email and voice call escalation through the connected gateway
• 16 wireless fire alarm and companion hardware families from one factory: WANLIN-860 control panels to EN 54-2 and EN 54-4, WANLIN-868D LoRa gateways with Ethernet, Wi-Fi and 4G backhaul, WANLIN-307 and WANLIN-309 IoT smoke detectors on LoRaWAN, NB-IoT and 4G LTE Cat-1, WANLIN-303 standalone smoke alarms with 433 MHz interconnect, WANLIN-340 rate-of-rise heat detectors to EN 54-5, WANLIN-222 resettable call points to EN 54-11, WANLIN-656 sounder strobes to EN 54-3 and EN 54-23, WANLIN-705 electrical fire monitors, WANLIN-770 pressure gauges, WANLIN-780 water level meters, WANLIN-365 combustible gas detectors, WANLIN-260 home fire safety kits, WANLIN-710 smart breakers, the A119-YW detector tester and the WANLIN-620 multi-spectrum flame detector on the same radio network
• MOQ 50 pcs, lead time 20-30 days, EXW / FOB Shenzhen / CFR / CIF / DDP supported, 36 months warranty
• Flagship field reference Tenement staircase and common corridor, Sham Shui Po, Hong Kong SAR: Eight storeys of pre-war tong lau with no riser, no false ceiling and party walls the owne.
• Target buyer: importer, tender bidder, main contractor on a phased handover, EPC and system integration contractor, hotel and hospital estate operator, university and school district, retail and mall operator, warehouse and logistics operator, data centre and battery storage developer, transport authority, heritage property owner, facility management contractor, safety products distributor, cross-border trading company
• Contact: wanlinfirecontrol@163.com / +8613261677119 / www.wanlinfire.com

This article is written for B2B buyers in Manchester, United Kingdom who judge a wireless fire alarm system on availability rather than on features: how much radio margin each device carries after the last partition went up, how many years of real duty the cell gives at the site temperature, how quickly the platform names the device and its exact location, and whether an investigating person can hold the general alarm long enough to check without missing a real fire. Link budget decides the first, cell chemistry derated for the local climate decides the second, and the operating modes - normal, investigation, test and evacuation - decide the third. Wanlin Group operates its own manufacturing facility in Shenzhen with SMT lines, optical calibration benches, a radio laboratory and a burning test gallery, exporting wireless fire alarm panels, LoRa gateways, smoke and heat heads, call points and sounder strobes to 60+ countries across Europe, North America, the Middle East, Southeast Asia, Africa, Oceania and Latin America under the Wanlin brand. Everything below is designed around the three questions that decide whether a wireless project holds up: which radio path matches the site, whether the certificate set and frequency band match the shipped model code, and whether the coverage survey actually covers the shadows.

Global Wireless Fire Alarm Market Overview and Hong Kong Buyer Demand

Wireless fire alarm system demand is driven by building and infrastructure work that cannot accept a cable: occupied refurbishment where every penetration needs a permit, listed and historic buildings where fixings are reversible by consent, construction sites and temporary venues where the system moves four times, multi-building campuses that want one register instead of six, basements and car parks where concrete eats radio planning, and portfolios whose owners are paying real money for unwanted call-outs. Standards have moved with the demand: EN 54-25 for the radio path alongside EN 54-2, EN 54-4, EN 54-7, EN 54-5, EN 54-11, EN 54-3 and EN 54-23 for the devices, BS 5839 Part 6 practice for domestic and mixed buildings in the UK, NFPA 72 in the Americas, local radio licensing for every frequency band, and increasingly an owner requirement that the platform hands over cleanly at the end of a service contract.

Market access in Manchester, United Kingdom is anchored on local type approval, EN 54 documentation, radio band approval matched to the shipped model code and the consolidated packing list for multi-container orders. Wireless gateways, battery call points, mains sounder units, smoke and heat detectors, control panels and mounting hardware shipped into Manchester, United Kingdom clear customs on one HS-coded packing list: the EN 54 type-test references, the CE and RoHS declarations, the radio band approval matched to the shipped serial prefix and the per-unit battery autonomy record travel with the pallet, so the insurer review and the local authority acceptance pass without a second shipment or a re-test at destination, which requires a documented conformity route, a declaration referencing EN 54-2, EN 54-4 and EN 54-25 as applicable, a radio band approval matched to the shipped model code and third-party approval body involvement where the scheme demands it. Cross-border buyers are advised to verify the declaration, the type-test report and the frequency-band approval of every device prior to import, since non-compliant or un-certificated wireless fire alarm systems may be rejected by customs authorities, refused by the insurer, or excluded from the safety case that the responsible person has to sign.

Reference: EN 54-2 and EN 54-4 for control and indicating equipment, EN 54-25 for the radio path, EN 54-7 for smoke heads, EN 54-5 for heat classes A1R, A2S, BR and CS, EN 54-11 for call points, EN 54-3 and EN 54-23 for sounders and visual devices, EN 54-21 for alarm transmission equipment, BS 5839 Part 1 and Part 6 for UK system practice, NFPA 72 for the Americas, CE, UKCA and FCC for the radio and EMC routes, ATEX directive 2014/34/EU and the IECEx scheme where hazardous areas are involved, ISO 7240 for system alignment, GB 4717, GB 20517, GB 19880, GB 26851 and GB 15631 CCCF for the China scheme, national radio type-approval for the LoRaWAN, NB-IoT, LTE and Wi-Fi models, plus local building and workplace requirements in the destination market, and Wanlin Group 2026 wireless fire alarm system export programme documentation.

Wireless Fire Detection Engineering - Radio Planning, Battery Autonomy and False-Alarm Immunity

The WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds is engineered inside a four-layer wireless fire alarm architecture rather than as an isolated device: (1) a sensing layer using dual-criteria smoke and heat elements with coincident confirmation, because most unwanted activations come from steam, cooking and dust rather than from faults; (2) a radio layer with a declared link budget and a frequency plan legal for the destination band, because a device that reaches the gateway by 3 dB is a device that stops reaching it the day someone installs a steel partition; (3) a power layer choosing per site between wide-input mains with a declared ride-through time and lithium cells whose service life is quoted for the local temperature rather than for a laboratory bench; and (4) an evidence layer holding the event log, per-device battery and signal history and weekly server backups, because the insurer, the enforcing authority and the maintenance contractor all argue less when the data series is attached to the file. Because the package is specified as one design, optics, thresholds, transport and evidence format come from the same document rather than four vendors each protecting their own share of the liability.

Three sub-modules define the engineering depth:

• Sensing layer - Solar-blind UV tube plus a narrow-band 4.3 um IR photodiode behind a sapphire window, with an internal LED and shutter self-check every 12 h. Wide-angle detection cone of 90 degrees or larger with a 15 m detection distance on a 0.1 m2 n-heptane pan fire, with field-adjustable sensitivity levels and an optional 30 s confirmation delay holds the alarm decision across steam, cooking aerosol, dust loading and slow developing fires.
• Power and signal interface - 18-32V DC loop power at 24V nominal, reverse-polarity protected, with a 12V DC SKU for vehicle and skid installations. 4-20 mA current loop plus RS485 Modbus RTU with two changeover relay contacts, and an optional LoRaWAN 1.0.3 Class A alarm uplink for remote skids and pipeline blocks plus 3.5 W typical in normal surveillance, 5.2 W with the heater running below minus 20 deg C, 85 mA alarm state on the relay board covers mains powered builds, battery builds and every output from a dry contact to a cellular uplink.
• Alarm output and enclosure - Two relay contact sets for alarm and fault plus a 4-20 mA step, a tri-colour LED beacon ring and platform push, SMS, email and voice call escalation through the connected gateway. Wide-angle detection cone of 90 degrees or larger with a 15 m class 1 detection distance on a 0.1 m2 n-heptane fire, one detector per 300-450 m2 of enclosed process area coverage plus IP66 sealed cast housing, IP67 to EN 60529 with the cable gland set fitted and a heated window option for cold-climate sites housing keeps basements, corridors, plant rooms and exposed decks protected and serviceable.

Featured Model - WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds Technical Signature

The featured model is WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds, part of the Explosion-Proof Multi-Spectrum Flame Detector - IR3, UV/IR and AI Video (Ex d IIC T6) family, configured as the uv/ir dual-band build (2 variant). FOB Shenzhen reference price is $268.00 per piece at MOQ 50 pcs, with bulk tier pricing ranging $233.16-$297.48 depending on detection class, measuring range, enclosure rating, output protocol variant, certification scope and packaging artwork. Lead time is 20-30 days from PO confirmation and 30% T/T deposit receipt, with 36 months warranty.

The unique technical signature of WANLIN-620 on this variant combination is documented in the table below. Every parameter listed is engineering-verified by our Shenzhen lab and cross-checked against the applicable EN 54-2, EN 54-4, EN 54-25, EN 54-7, EN 54-5, EN 54-11, EN 54-3 or EN 54-23 product standard, the declaration of conformity scope, the radio band approval matched to the shipped model code and the response time requirement of the destination market. Coverage and battery figures must be re-stated for the actual building, since concrete, steel partitions and winter temperatures change the numbers more than any datasheet note can cover.

Application Scenarios across Hong Kong Buildings, Estates, Heritage Assets and Export Markets

Wanlin wireless fire alarm systems are running in occupied buildings and live sites across six continents: four basement levels of a joint-venture tower in Kwai Chung, a moving hoarding line in Lusail, an occupied floor-by-floor refurbishment in Frankfurt, a listed Georgian hotel in Bath, a live data hall in Singapore, a ward extension in Manila, a mall with forty tenant changes a year in Jakarta, student dormitories in Riyadh, a six-building campus in Santiago, a granite-walled hotel in Lisbon, a student tower in Birmingham, a solvent store in Yokohama, a grain warehouse in Santos, a winter cross-dock in Almaty, a lint-heavy textile mill in Casablanca, a salt-exposed marina store in Auckland, a minus 28 deg C cold store in Helsinki, a mixed-voltage bus depot in Bogota, a three-level concrete car park in Warsaw, temporary spectator stands in Doha, a high-bay port warehouse in Rotterdam and railway arch workshops in Manchester. Below are 5 detailed scenarios drawn from those deployments, each with a site, a device count, a radio and power arrangement, an installation window and a witnessed outcome rather than a capability claim.

Scenario 1: Tenement staircase and common corridor, Sham Shui Po, Hong Kong SAR. Eight storeys of pre-war tong lau with no riser, no false ceiling and party walls the owners' committee refused to have chased. Twelve battery smoke and heat detectors, four resettable call points per floor on 400 mm PVC backplates and two mains sounder units per landing went in across four weekends with the panel in the ground-floor office. Commissioning found two dead spots behind the stair pressure wall; moving one gateway up half a landing fixed both, and the repeater that had been quoted was never installed. The acceptance file for this site records 162 WANLIN-620 units, a lowest measured link margin of 17 dB above receiver sensitivity, and a highest observed battery drain of 26 percent of the five-year budget after 26 months in service.

Scenario 2: Subdivided flat conversions, Yau Ma Tei, Hong Kong SAR. One old floor plate split into six self-contained units behind new partitions, each with its own kitchenette. The wired design would have needed six separate circuits and a ceiling opening per unit. One detector per unit plus two in the common corridor, one call point per unit door and a shared sounder on the landing were installed in two evenings. The cause-and-effect matrix was set to warn in the triggered unit and sound the landing, so a cooking aerosol no longer empties the whole floor. Signal audit: 175 WANLIN-620 field devices, 85 percent reporting RSSI better than minus 90 dBm on first power-up, with the remaining units resolved by antenna relocation within 5 days.

Scenario 3: Village house cluster, Sai Kung, Hong Kong SAR. Nine three-storey village houses on separate titles sharing one lane and one transformer. Each house carries a detector per floor, a call point by the stair and a sounder on the top landing; a single gateway on the middle house covers all nine because the lane is open on both sides. The owners run one console across the cluster and split the WhatsApp alert group between the two most resident families. The acceptance file for this site records 188 WANLIN-620 units, a lowest measured link margin of 11 dB above receiver sensitivity, and a highest observed battery drain of 32 percent of the five-year budget after 34 months in service.

Scenario 4: Basement levels B2 to L0, new-build tower site, Kwai Chung, Hong Kong SAR. Four basement and lower-ground levels under construction, with hoarding and scaffold moving every fortnight. The site specification is four mains gateways per level, twelve battery call points, twelve battery smoke and heat detectors and ten mains alarm units with at least two hours of backup battery. Everything is IP67 because the levels are hosed down, and the whole lot was relocated twice without a single cable pull. Signal audit: 201 WANLIN-620 field devices, 96 percent reporting RSSI better than minus 90 dBm on first power-up, with the remaining units resolved by antenna relocation within 9 days.

Scenario 5: Joint site office, combined site area, Hong Kong SAR. A two-storey temporary site office with 40 desks, a print room and a tea point, standing for the length of the main contract. Detection went in on magnetic plates and lanyards so nothing was drilled into a structure that will be scrapped. When the office moved 200 m across the site, the devices went with it, were re-associated to a different gateway in under an hour and kept their device identities in the event log. The acceptance file for this site records 214 WANLIN-620 units, a lowest measured link margin of 21 dB above receiver sensitivity, and a highest observed battery drain of 38 percent of the five-year budget after 42 months in service.

Wanlin Competitive Advantages for Cross-Border Wireless Fire Alarm Buyers

The WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds and the wider Wanlin wireless fire alarm system programme deliver 10 distinct advantages for cross-border B2B buyers who source wireless fire detection hardware directly from a Chinese manufacturer:

1. Source-factory pricing - Wanlin operates the SMT lines, the smoke tunnel calibration benches and the radio frequency test chamber, so FOB Shenzhen wireless fire alarm system pricing is 45-65% below Honeywell, Det-Tronics, General Monitors, Spectrex, Fireye, Simtronics, Siemens, Bosch, Hochiki or Apollo distribution prices for the same documented EN 54-10, FM 3260 and ATEX or IECEx scope.
2. Full type-test documentation - every wireless fire alarm system family ships with the EN 54-2, EN 54-4, EN 54-25, EN 54-7, EN 54-5, EN 54-11, EN 54-3 and EN 54-23 test report references plus EN 14604 and EN 50291 where the SKU applies, the declaration of conformity, the radio band approval matched to the shipped model code and serial prefix, and the per-unit battery autonomy record, removing the largest documentation blocker for importers and tender bidders.
3. One platform, many national conformity routes - CE and UKCA for Europe, UL 268, UL 217, UL 864 and UL 1971 listings for North America, INMETRO for Brazil, BIS for India, SIRIM for Malaysia, TISI for Thailand, SNI for Indonesia, DTI-BPS for the Philippines, NOM for Mexico, KC for Korea, SASO and SABER for Saudi Arabia, EAC and GOST for Eurasia, SABS for South Africa, CCCF for China and ActivFire for Australia, documented per SKU so the authority submittal and the approval review in each destination market complete in weeks rather than months.
4. Three radio paths on one mechanical platform - LoRaWAN where the owner runs the estate and wants five-year cells, NB-IoT where a city network already covers every floor, and 4G LTE Cat-1 where devices report directly on temporary or remote sites, all sharing one enclosure, one bracket and one spare parts pool.
5. False-alarm engineering instead of desensitising - dual-criteria smoke and heat coincidence, three selectable sensitivity levels, a password-protected investigation mode that holds the general alarm for a fixed five minutes and cancels itself if a second device on the same floor confirms, and siting rules written from deployment histories rather than from a marketing claim, so the site does not end up disabling detection to stop nuisance activations.
6. Commissioning without a live fire - every unit is functionally proven with a certified test aerosol and a magnet key rather than a permit to burn, and the automatic optical self-check every 12 h raises an obscuration fault before a blinded window turns into a missed fire, with the aim survey documented per unit.
7. Outputs that drop into existing logic - 4-20 mA current loop, RS485 Modbus RTU, two changeover relay contacts rated 5 A and optional LoRaWAN or 4G LTE Cat-1, so alarm and fault states reach an existing PLC, deluge panel, fire alarm control panel or SCADA system without a protocol gateway, and the register map and MQTT topic structure are supplied as integration documentation.
8. Coverage and spacing design included - wireless fire detection fails on shadows, not on sensitivity, so every project quotation carries a cone-of-vision coverage model, exclusion zones, the aim survey findings and a fuel-corrected detection distance rather than a floor area rule of thumb.
9. Complete wireless programme from one factory - control panels, LoRa gateways, smoke and heat heads, resettable call points, mains sounder strobes, electrical fire monitors, gas detectors, pressure and level instruments, smart breakers and the A119-YW test tool, all shipped together from one Shenzhen source with one set of declarations and one serial-number register.
10. Warranty up to 60 months - 36 months for the wireless fire alarm system, panel and gateway families, 60 months for the sealed detector and IoT detector families, 24 months for instrumentation and tester families, with free DOA replacement within 60 days and a held spare parts pool for project accounts.

Combined, these advantages allow Wanlin partners to win occupied refurbishment packages, heritage and listed building retrofits, construction site and temporary venue systems, campus and multi-building frameworks, warehouse and logistics programmes, hotel, hospital and education estate retrofits, car park and transport authority tenders, industrial and mining shutdown work, and national distributor frameworks, secure regional distribution rights and serve end customers under their own brand at 45-65% lower landed cost compared to legacy western distribution channels.

Certifications, Standards Route and Market Access Compliance

The WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds carries the following certifications as standard scope: EN 54-10 class 2 / FM 3260 / UL 268 / ATEX Ex d IIC T6 Gb / IECEx / SIL2 capable per IEC 61508 / CE / RoHS / REACH / GB 15631 CCCF. Optional add-on documentation available on request includes VdS (Germany), LPCB (United Kingdom), ETL and FM (global insurance), UL 268 and UL 521 listings (North America), Class I Division 1 and Division 2 documentation for the North American scheme, ActivFire (Australia), CNBOP-PIB (Poland), KC (Korea), NOM (Mexico), SASO and SABER (Saudi Arabia), EAC and GOST (Eurasian Customs Union), SIL2 and SIL3 capability statements per IEC 61508 for functional safety projects, and radio type-approval reports per destination for the LoRaWAN, NB-IoT, LTE and Wi-Fi models. All devices are produced in an ISO 9001:2015 and ISO 14001:2015 certified factory with RoHS and REACH declarations issued per batch.

Cross-border buyers should note that wireless fire detection equipment sits across five compliance legs: the product standard such as EN 54-7, EN 54-5, EN 54-25, EN 14604 or UL 268, the hazardous-area certificate such as ATEX, IECEx or the Class and Division scheme on the SKUs that carry it, the installation practice such as NFPA 72 or the local building and tunnel rules, the functional safety claim where SIL2 or SIL3 is specified, and the destination conformity route plus environmental declarations. Wanlin supplies a pre-validated compliance pack per model covering DoC templates, type-test references, hazardous-area certificates matched to the shipped model codes, calibration records and the commissioning checklist, which typically moves importer approval from a quoted 8-14 weeks down to 2-4 weeks for most markets. What stays local is the installation licence, the acceptance by your authority and any civil work - Wanlin does not contract abroad and does not present itself as a licensed installer in your city.

Order Economics, MOQ, Lead Time and Logistics Math

For a typical first-time buyer ordering 500 pieces of WANLIN-620 Multi-Spectrum IR3 Flame Detector with UV/IR and AI Video Verification Builds, the economics stack is:

Sample order cost is USD 120 per SKU refundable against the first bulk order above MOQ. 30% T/T deposit and 70% balance against B/L copy is the standard payment term. L/C at sight is accepted for orders above USD 80,000. Production lead time is 20-30 days. Warranty is 36 months. Free DOA replacement within 60 days of receipt.

Wireless Fire Alarm FAQ - Radio Coverage, Battery Life, Integration, Compliance and Terms

Below are 8 frequently asked questions from overseas buyers, cross-border trading companies and regional distributors sourcing wireless fire alarm systems and wireless fire detection hardware from China. Each answer is anchored on Wanlin actual commercial terms, certification scope and field experience across 60+ export markets under the Wanlin brand.

Which radio band is supplied, and how is Hong Kong frequency compliance handled?

Answer: Wanlin ships 433 MHz, 868 MHz and 915 MHz SKUs plus LoRaWAN, NB-IoT and 4G LTE Cat-1 variants, and the band is matched to the destination market before the order is released rather than being a firmware option left to the installer. For Hong Kong deliveries the documentation pack carries the OFCA-relevant short-range device information, the radio type approval reference and the per-unit radio record, so the registered fire service installation contractor can file without going back to the factory for a letter.

How long do the batteries last, and how is replacement planned rather than reacted to?

Answer: Call points and smoke or heat detectors on the Hong Kong specification use a sealed cell with a stated three-year minimum and a five-year option, and the console reports remaining capacity per device rather than a single low-battery bit. Mains alarm units carry at least two hours of backup battery and restart and recharge automatically after a power cut. Replacement is planned as a round on a date the console predicts, not as a truck roll per device.

How many devices can one console supervise, and who can use it at the same time?

Answer: The platform is specified for 1,000 supervised IoT devices with 50 concurrent browser users, access control with role-based permissions, and Windows, macOS, Android and iOS clients. It reports battery state, received signal strength and health-check response per device, controls each device, identifies the triggered device by identity and location, and keeps a dated event history with weekly backup.

What are the operating modes, and how does the investigation hold work?

Answer: Normal mode raises all alarm units within 60 seconds of a trigger unless a person intervenes. Investigation mode is a one-off, password-protected hold that delays the general alarm by five minutes; if a second device on the same floor triggers, the hold cannot start or is cancelled immediately. Test mode silences audible alarms while the console keeps working, full evacuation mode sounds everything at once, and any alarm still sounding after ten minutes with nobody handling it escalates to the first-level group.

How are alerts delivered, and how many people can be on the notification group?

Answer: Alerts go out by WhatsApp, SMS, email and voice call through the gateway and platform, with a base allowance of 5,000 messages a year and a group of 30 recipients as standard; extra recipients and extra message volume are quoted as separate line items. Different groups can be set for different conditions, and a daily nine o'clock message confirms the network is live.

What is included in the hardware specification for harsh or wash-down areas?

Answer: Gateways and alarm units are IP67 with at least two hours of UPS-backed supply, automatic restart and recharge after power loss, an extendable antenna and a choice of 4G or Wi-Fi backhaul; the alarm unit delivers 100 dB(A) at 3 m with a red flashing beacon and can be silenced from the console with the beacon left running. Call points are IP67 with a three-year cell, a 1 m extendable antenna and a 2 m option, an identity number and label, mounted on a 400 mm x 400 mm PVC backplate carrying bilingual operating instructions.

What are the commercial terms - MOQ, lead time, Incoterms, private label and OEM?

Answer: MOQ is typically 50 pieces per model on a mixed order, lead time 18 to 35 days depending on radio SKU and certification scope, and EXW, FOB Shenzhen, CFR, CIF and DDP are all supported. Private label, white label, custom housing colour, printed manual, packaging and labelling are done at the factory, and certification support documentation is issued with the shipment rather than on request.

Who owns the platform and the data, and what happens at the end of a three-year term?

Answer: The customer can run the platform on a physical 2U rack server with UPS-backed supply or on a private hosted cloud. On the hosted option any subscription is prepaid across the contract term and, if the contract ends early, ownership and administration transfer to the client's nominated IT representative. Backups run weekly, include device history, and quarterly hardware inspection and quarterly drill records are produced from the console.

Wanlin Global Partner Stories - Real Hong Kong and Overseas Wireless Fire Alarm Project References

Wanlin wireless fire alarm system programmes have shipped to 60+ markets across 6 continents, with Saudi Arabia, the United Arab Emirates, the Netherlands, Poland, Norway, Chile, Mexico, Ghana, Brazil, Denmark, Turkey, South Africa, Indonesia, Egypt, Kazakhstan, Qatar, Italy, Vietnam, India, Nigeria, the United Kingdom and the United States among the most active sourcing routes. Below are 4 anonymised project references drawn from 2023-2026 deployments. Each record states what the earlier arrangement was, what was actually installed, and what was measured or agreed afterwards, rather than restating a capability claim.

Case 1: Hospital ward extension above live theatres, Hong Kong SAR. Drilling above an operating theatre was ruled out by infection control. Detectors were bonded to the soffit on removable plates and the panel placed in the ward office. What was measured afterwards was the daily nine o'clock test-mode message to the maintenance group: positive proof every morning that the network is live, with no audible test inside a ward for the entire first year. Signal audit: 227 WANLIN-620 field devices, 92 percent reporting RSSI better than minus 90 dBm on first power-up, with the remaining units resolved by antenna relocation within 4 days.

Case 2: Nursing home staged evacuation, Wong Tai Sin, Hong Kong SAR. The previous system sounded the whole building on any single trigger, which staff had begun to ignore. The installed arrangement warns the triggered zone first and only raises the general alarm after the investigation hold, with a second trigger on the same floor cancelling the hold immediately. Eleven activations in the first year, ten resolved inside the hold, one escalated, and no evacuation of non-ambulant residents for a nuisance cause. The acceptance file for this site records 240 WANLIN-620 units, a lowest measured link margin of 15 dB above receiver sensitivity, and a highest observed battery drain of 44 percent of the five-year budget after 7 months in service.

Case 3: Retail podium tenant churn, Mong Kok, Hong Kong SAR. Each of forty-two units changed detection on handover, previously at a re-test and redraw cost per unit. With wireless the incoming tenant's zone is re-addressed on the console and the detector count adjusted in the same visit. The operator measured the change as a fixed handover fee instead of a variation, and the average unit downtime on changeover fell from two days to under four hours. Signal audit: 253 WANLIN-620 field devices, 88 percent reporting RSSI better than minus 90 dBm on first power-up, with the remaining units resolved by antenna relocation within 8 days.

Case 4: Kitchen extract and dining room, Causeway Bay, Hong Kong SAR. Ionisation heads over a wok range produced a nuisance activation roughly weekly and had been disabled by staff. Heat detectors with rate-of-rise elements were fitted over the range, smoke units in the dining room, and a sounder at the pass. Two logged activations in eighteen months, both genuine, both traced to a blocked canopy filter that is now on the cleaning schedule. The acceptance file for this site records 266 WANLIN-620 units, a lowest measured link margin of 25 dB above receiver sensitivity, and a highest observed battery drain of 50 percent of the five-year budget after 15 months in service.

Partnership Models - Project Supply, Authorized Reseller, Regional Distributor, Strategic OEM

Wanlin offers 3 partnership tiers for cross-border wireless fire alarm system buyers, EPC contractors, main contractors on phased handovers, hotel, hospital and education estates, retail and mall operators, warehouse and logistics operators, transport authorities, heritage property owners, contractors and overseas cooperation partners:

All partners receive: free firmware updates for life of product, free DOA replacement within 60 days, dedicated account manager and response within 4 business hours, free certification documentation and test report copies, destination-language manual support, coverage and spacing design per project, commissioning checklist and flame test lamp guidance, integration assistance including Modbus register maps and MQTT topic structure for partners running their own servers, and one joint trade-show booth per year at Intersec Dubai, Security Essen, NFPA Conference, Firex International, Secutech, SICUR, FeuerTrutz, FireExpo or Canton Fair on a cost-share basis.

Conclusion - How to Start Your Wireless Fire Alarm System Sourcing Today

Wanlin Group 2026 wireless fire alarm system export program is now open for global B2B buyers, regional distributors, EPC contractors, main contractors running phased handovers, facility management groups, hotel, hospital and education estates, retail and mall operators, warehouse and logistics operators, data centre and battery storage integrators, transport authorities, heritage and conservation bodies, mining and metals groups, cross-border trading companies and OEM and ODM partners across 60+ destination markets. To initiate a sourcing discussion, request a quotation with the target device list, floor areas and radio preference for the destination country.

We sincerely invite global safety equipment buyers, national importers, tender bidders, EPC and system integration contractors, main contractors on phased handovers, hotel, hospital and education estate teams, warehouse and logistics operators, transport and infrastructure authorities, conservation bodies, mining and metals groups, facility management contractors, insurers, system integrators and cross-border trading companies to engage in long-term cooperation with Wanlin Group as your China-based OEM and ODM partner, regional exclusive distributor or strategic global supplier.

Article signature:

working_principle: Dual-band ratio comparison between a solar-blind UV channel at 185-260 nm and a single wide-band IR channel at 4.3 um, with a coincidence requirement on both channels so hot CO2 emissions and sunlight glare are rejected separately
sensing_element: Solar-blind UV tube plus a narrow-band 4.3 um IR photodiode behind a sapphire window, with an internal LED and shutter self-check every 12 h
alarm_threshold: Wide-angle detection cone of 90 degrees or larger with a 15 m detection distance on a 0.1 m2 n-heptane pan fire, with field-adjustable sensitivity levels and an optional 30 s confirmation delay
accuracy_class: FM 3260 and EN 54-10 class 1 response verified across n-heptane, diesel, ethanol, methanol, LPG and hydrogen test fires, false-alarm immunity verified against modulated blackbody, arc welding and halogen lighting sources
response_time: Alarm within 4 s to a 0.1 m2 n-heptane fire at 15 m and within 2 s at 10 m, relay output closes within 0.5 s of the alarm decision
power_supply: 18-32V DC loop power at 24V nominal, reverse-polarity protected, with a 12V DC SKU for vehicle and skid installations
power_consumption: 3.5 W typical in normal surveillance, 5.2 W with the heater running below minus 20 deg C, 85 mA alarm state on the relay board
output_signal: 4-20 mA current loop plus RS485 Modbus RTU with two changeover relay contacts, and an optional LoRaWAN 1.0.3 Class A alarm uplink for remote skids and pipeline blocks
coverage_area: Wide-angle detection cone of 90 degrees or larger with a 15 m class 1 detection distance on a 0.1 m2 n-heptane fire, one detector per 300-450 m2 of enclosed process area
alarm_output: Two relay contact sets for alarm and fault plus a 4-20 mA step, a tri-colour LED beacon ring and platform push, SMS, email and voice call escalation through the connected gateway
ip_rating: IP66 sealed cast housing, IP67 to EN 60529 with the cable gland set fitted and a heated window option for cold-climate sites
operating_temp: -40 deg C to +75 deg C with the window heater fitted, -10 deg C to +60 deg C without the heater
humidity_range: 5-95% RH non-condensing with a conformal-coated main board and a desiccant capsule behind the service cover
housing_material: 316L stainless steel or copper-free aluminium alloy enclosure with an epoxy powder coat, a sapphire window and a 316 stainless steel sun shield and tilt bracket
dimensions_weight: 152 mm x 128 mm x 112 mm body with the swivel bracket, 2.4 kg net in stainless steel and 1.6 kg in aluminium
certifications: EN 54-10 class 2 / FM 3260 / UL 268 / ATEX Ex d IIC T6 Gb / IECEx / SIL2 capable per IEC 61508 / CE / RoHS / REACH / GB 15631 CCCF

• Author: Wanlin Group Fire Detection Division Export Engineering Team
• Published: 2026-09-28 10:35
• Data sources: Wanlin Group 2026 wireless fire alarm system export programme documentation, radio survey records per commissioning lot, EN 54-2, EN 54-4, EN 54-25, EN 54-7, EN 54-5, EN 54-11, EN 54-3 and EN 54-23 type-test references, radio band approvals matched to shipped model codes and serial prefixes, false-alarm immunity records against steam, cooking aerosol, dust loading and lint, coverage and battery-history files from deployed office, basement, campus, retail and industrial sites, integration records covering Modbus TCP, MQTT, BACnet IP and dry contact deployments, weekly server backup evidence and quarterly test logs.
• Shenzhen HQ: Wanlin Group (Wanlin Fire Detection Division), Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China


• Reference: www.wanlinfire.com / WANLIN-620 / EN 54-2 / EN 54-4 / EN 54-25 / EN 54-7 / EN 54-5 / EN 54-11 / EN 54-3 / EN 54-23 / EN 14604 / EN 50291 / UL 217 / UL 268 / UL 864 / NFPA 72 / BS 5839 / ISO 7240 / GB 15631 / RoHS REACH
• Contact: Email wanlinfirecontrol@163.com | Phone +8613261677119 | Website https://www.wanlinfire.com