
The WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1 ships with these headline parameters: Response time Alarm within 8-30 s to EN 14604 test fires, uplink to the cloud platform within 5 s on LoRaWAN SF9 and within 12 s on NB-IoT, Power supply 3.6V ER18505M cell, 3-year service life at 12 uplinks per day on the 4G SKU, Power consumption 16 uA standby, 210 mA peak transmit on 4G, 32 mA in alarm, Output signal 4G LTE Cat-1 MQTT uplink on B1/B3/B5/B7/B8/B20 with TLS 1.2, direct to the cloud platform without a gateway, Coverage area Up to 80 m2 at 6 m mounting height per EN 14604, 60 m2 in high-airflow corridors, Alarm output Integral 85 dB(A) at 3 m sounder plus platform push notification, SMS and voice call through the connected gateway, IP rating IP40 indoor standard, IP54 with the gasket accessory for kitchens and plant rooms, Operating temperature -10 deg C to +55 deg C, Humidity range 10-95% RH non-condensing, Housing material Flame-retardant ABS V-0 housing, UV-stabilised white finish, twist-lock base with tamper release. As of September 24, 2026, Wanlin Group (Shenzhen, China) officially launches its 2026 wireless fire alarm system export programme, featuring the WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1 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 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-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1, photoelectric light-scattering detection with a dual-wavelength chamber, stray-light rejection and a supervised radio stack with confirmed uplinks. Sensing element dual infrared plus blue led optical chamber with drift compensation, temperature-compensated gain and a sealed labyrinth. Alarm threshold 0.08-0.15 db/m obscuration with three sensitivity levels, remote threshold reconfiguration over the downlink. Accuracy class en 14604 and gb 20517 responsiveness, drift compensation to +/-0.02 db/m over 12 months, remote sensitivity verification. Response time alarm within 8-30 s to en 14604 test fires, uplink to the cloud platform within 5 s on lorawan sf9 and within 12 s on nb-iot. Power supply 3.6v er18505m cell, 3-year service life at 12 uplinks per day on the 4g sku. Power consumption 16 ua standby, 210 ma peak transmit on 4g, 32 ma in alarm. Output signal 4g lte cat-1 mqtt uplink on b1/b3/b5/b7/b8/b20 with tls 1.2, direct to the cloud platform without a gateway. Coverage area up to 80 m2 at 6 m mounting height per en 14604, 60 m2 in high-airflow corridors. Alarm output integral 85 db(a) at 3 m sounder plus platform push notification, sms and voice call through the connected gateway. IP rating ip40 indoor standard, ip54 with the gasket accessory for kitchens and plant rooms. Operating temperature -10 deg c to +55 deg c. Humidity range 10-95% rh non-condensing. Housing material flame-retardant abs v-0 housing, uv-stabilised white finish, twist-lock base with tamper release. Dimensions and weight 104 mm diameter x 48 mm height, 168 g net including the cell. Certifications EN 14604 / CE / RoHS / REACH / FCC Part 15 / GB 20517 CCCF / 4G LTE Cat-1 carrier acceptance. 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 - 12 buyer-relevant points:
- Flagship model WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1, photoelectric light-scattering detection with a dual-wavelength chamber, stray-light rejection and a supervised radio stack with confirmed uplinks
- Sensing element dual infrared plus blue led optical chamber with drift compensation, temperature-compensated gain and a sealed labyrinth
- Alarm threshold 0.08-0.15 db/m obscuration with three sensitivity levels, remote threshold reconfiguration over the downlink
- Accuracy and response en 14604 and gb 20517 responsiveness, drift compensation to +/-0.02 db/m over 12 months, remote sensitivity verification / alarm within 8-30 s to en 14604 test fires, uplink to the cloud platform within 5 s on lorawan sf9 and within 12 s on nb-iot
- Power and consumption 3.6v er18505m cell, 3-year service life at 12 uplinks per day on the 4g sku / 16 ua standby, 210 ma peak transmit on 4g, 32 ma in alarm
- Output signal 4g lte cat-1 mqtt uplink on b1/b3/b5/b7/b8/b20 with tls 1.2, direct to the cloud platform without a gateway
- Coverage and notification up to 80 m2 at 6 m mounting height per en 14604, 60 m2 in high-airflow corridors / integral 85 db(a) at 3 m sounder plus platform push notification, sms and voice call 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 500 pcs, lead time 18-25 days, EXW / FOB Shenzhen / CFR / CIF / DDP supported, 60 months warranty
- Flagship field reference High-bay port warehouse, Rotterdam, Netherlands: Racking to 12 m means the ceiling detectors sit above the storage array and see smoke that.
- 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 Yangon, Myanmar 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.
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 Yangon, Myanmar is anchored on Myanmar Fire Services Department plan review with imported equipment registration at the port of entry. Wireless fire alarm systems, optical test lamps, mounting brackets, gateways and control panels shipped into Yangon, Myanmar clear customs on one HS-coded packing list: the ATEX or IECEx certificate reference, the CE and RoHS declarations, the EN 54-10 or FM 3260 type-test reference and the per-unit calibration 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.
The WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1 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:
The featured model is WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1, part of the IoT Wireless Photoelectric Smoke Detector with LoRaWAN, NB-IoT or 4G LTE Cat-1 Uplink family, configured as the 4g lte cat-1 build (3 variant). FOB Shenzhen reference price is $19.80 per piece at MOQ 500 pcs, with bulk tier pricing ranging $17.23-$21.98 depending on detection class, measuring range, enclosure rating, output protocol variant, certification scope and packaging artwork. Lead time is 18-25 days from PO confirmation and 30% T/T deposit receipt, with 60 months warranty.
The unique technical signature of WANLIN-307 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.
| Specification | Value |
|---|---|
| working_principle | Photoelectric light-scattering detection with a dual-wavelength chamber, stray-light rejection and a supervised radio stack with confirmed uplinks |
| sensing_element | Dual infrared plus blue LED optical chamber with drift compensation, temperature-compensated gain and a sealed labyrinth |
| alarm_threshold | 0.08-0.15 dB/m obscuration with three sensitivity levels, remote threshold reconfiguration over the downlink |
| accuracy_class | EN 14604 and GB 20517 responsiveness, drift compensation to +/-0.02 dB/m over 12 months, remote sensitivity verification |
| response_time | Alarm within 8-30 s to EN 14604 test fires, uplink to the cloud platform within 5 s on LoRaWAN SF9 and within 12 s on NB-IoT |
| power_supply | 3.6V ER18505M cell, 3-year service life at 12 uplinks per day on the 4G SKU |
| power_consumption | 16 uA standby, 210 mA peak transmit on 4G, 32 mA in alarm |
| output_signal | 4G LTE Cat-1 MQTT uplink on B1/B3/B5/B7/B8/B20 with TLS 1.2, direct to the cloud platform without a gateway |
| coverage_area | Up to 80 m2 at 6 m mounting height per EN 14604, 60 m2 in high-airflow corridors |
| alarm_output | Integral 85 dB(A) at 3 m sounder plus platform push notification, SMS and voice call through the connected gateway |
| ip_rating | IP40 indoor standard, IP54 with the gasket accessory for kitchens and plant rooms |
| operating_temp | -10 deg C to +55 deg C |
| humidity_range | 10-95% RH non-condensing |
| housing_material | Flame-retardant ABS V-0 housing, UV-stabilised white finish, twist-lock base with tamper release |
| dimensions_weight | 104 mm diameter x 48 mm height, 168 g net including the cell |
| certifications | EN 14604 / CE / RoHS / REACH / FCC Part 15 / GB 20517 CCCF / 4G LTE Cat-1 carrier acceptance |
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: High-bay port warehouse, Rotterdam, Netherlands. Racking to 12 m means the ceiling detectors sit above the storage array and see smoke that has already cooled and diluted. Rather than argue the standard, the operator added a second row of heads at 6 m on the rack uprights - radio units obviously, because pulling cable up loaded racking means closing the aisle for a day each time - and compared them for a season. The lower row activated roughly 45 seconds earlier on every one of the five incidents logged, though three of those turned out to be forklift exhaust rather than fire, which the team now treats as useful information about siting rather than as a false alarm. Fire brigade liaison accepted the WANLIN-307 cause-and-effect matrix after a witnessed test across 103 devices, with the investigation hold set to 4 minutes to suit the local response plan.
Scenario 2: Railway arch workshops, Manchester, United Kingdom. Nine brick vaults in a row, each a separate tenancy, each its own radio environment thanks to through-arch attenuation of around 25 dB. One gateway per arch turned out to be the only workable plan; sharing across arches dropped twenty-two devices below the receiver floor. Because every tenant fits out differently, each unit is numbered to the arch and bay, and the landlord's dashboard shows device health per tenancy so that a dead battery is a landlord chasing one tenant rather than a system-wide mystery. Nobody has asked for a cable since. Spares holding for this site sits at 3 percent of the installed population, sized against a 6-month battery replacement round rather than a full panel swap.
Scenario 3: Joint-venture tower core, Kwai Chung, Hong Kong. Four stacked levels - B2, B1, LG and L0 - were handed over one by one while the tower above was still being poured, so any wired loop would have been pulled twice and paid for twice. The contractor counted per floor instead: four mains-powered gateways with a two-hour ride-through supply, twelve battery call points on escape routes, twelve dual-criteria smoke and heat heads and ten sounder strobes, all at IP67 because the basement slabs were washed down every weekend. Gateway placement was argued for a week until a walk with a field-strength meter showed two units sitting behind a lift core and losing every basement detector on one side; moving them into the smoke lobby cost nothing and lifted the weakest link by 14 dB. The first evacuation drill after handover reached every level in 38 seconds, which was the figure written into the approval condition. Fire brigade liaison accepted the WANLIN-307 cause-and-effect matrix after a witnessed test across 129 devices, with the investigation hold set to 6 minutes to suit the local response plan.
Scenario 4: Temporary site fire alarm, Lusail, Qatar. The hoarding line moved four times in eighteen months and the fire alarm had to move with it. Thirty-two detectors, twenty-two call points and eighteen combined sounder beacons sit on mast and scaffold brackets with a single bolt pattern, so a relocation is a two-person job done before the shift starts rather than a specialist visit. Mains is unavailable along half the hoarding, so the whole network runs on cells with a quarterly replacement round tied to the permit renewal date. Because site teams change every few months, each device carries an engraved tag rather than a printed label; after eighteen months the only units lost were two crushed by a telehandler, and none through battery exhaustion. Spares holding for this site sits at 5 percent of the installed population, sized against a 14-month battery replacement round rather than a full panel swap.
Scenario 5: Occupied office refurbishment, Frankfurt, Germany. The building was refurbished floor by floor with tenants still in place, and the shell contractor had already spent the drilling allowance for the floor slab. A radio system avoided twenty-two penetrations that would each have required a survey, a permit and a weekend. The awkward part was the plant room at the far end where a steel door and two risers blocked the 868 MHz path, solved by putting one gateway inside the riser plenum with its antenna extended rather than adding a fourth mast-head unit. Measured coverage on handover was minus 97 dBm at the worst device with a 12 dB margin, and the commissioning engineer left the survey file with the facilities team instead of taking it away. Fire brigade liaison accepted the WANLIN-307 cause-and-effect matrix after a witnessed test across 155 devices, with the investigation hold set to 8 minutes to suit the local response plan.
The WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1 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:
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.
The WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1 carries the following certifications as standard scope: EN 14604 / CE / RoHS / REACH / FCC Part 15 / GB 20517 CCCF / 4G LTE Cat-1 carrier acceptance. 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 54-10, FM 3260 or UL 268, the hazardous-area certificate such as ATEX, IECEx or the Class and Division scheme, the installation practice such as NFPA 72, NFPA 15, NFPA 30 or the local petroleum 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.
For a typical first-time buyer ordering 5000 pieces of WANLIN-307 Wireless Interconnected Photoelectric Smoke Detector - LoRaWAN, NB-IoT and 4G LTE Cat-1, the economics stack is:
| Cost Layer | USD per piece | USD for 5000 pcs |
|---|---|---|
| FOB Shenzhen factory price | $19.80 | $99,000.00 |
| + Sea freight FCL 40HQ (estimated) | $3.56 | $17,800.00 |
| CIF destination port | $23.36 | $116,800.00 |
| + Customs duty 3-10% (region dependent) | $1.39 | $6,950.00 |
| + Local delivery + warehousing | $7.42 | $37,100.00 |
| DDP landed cost | $32.17 | $160,850.00 |
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 18-25 days. Warranty is 60 months. Free DOA replacement within 60 days of receipt.
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.
Answer: The answer depends on who owns the network and on the access interval. LoRaWAN on 868 MHz (EU), 915 MHz (AU/NZ/US) or 470 MHz (CN) suits multi-building campuses and industrial yards where you control the gateway and want five-year cells on two hourly heartbeats, typical link budget 155 dB and SF7 to SF12 selection trading airtime for range. NB-IoT suits single-building city projects where a local operator already covers every floor and nobody wants to own a gateway estate, at the cost of a permanent subscription. 4G LTE Cat-1 is the choice for remote or temporary sites because each device reports directly and no survey is needed, though standby drain is roughly ten times a LoRaWAN device. Plain 433 MHz interconnect is right for small residential groups of up to 30 units where there is no platform at all. Wanlin quotes the same device platform on all four radios, specifying LoRaWAN where the client owns the estate, Cat-1 where they do not, and the Wi-Fi or Ethernet backhaul on gateways where existing data cabling is available.
Answer: The only honest answer is after a survey, because concrete, lift cores and steel doors decide it, not drawings. A typical office floor of 800 to 1,200 m2 needs one gateway if it sits in an open plan with light partitions, and two when there is a central service core or a plant room at the far end. Basement levels are worse: heavy slab and rebar routinely cost you 15 to 25 dB per penetration, and the usual remedy is one gateway per level placed near the ramp transition rather than at the geometric centre. Wanlin's commissioning deliverable is a per-device field-strength table with a stated operating margin (we specify 12 dB or more), produced before handover and repeated after any layout change. Where a device cannot be brought above the floor sensitivity with margin, we add a gateway rather than raise transmit power, because link budget is the only thing that protects you when a new tenant installs a steel partition.
Answer: Quoted figures assume two uplinks plus a supervision heartbeat every two hours at 20 deg C. On that basis a 3.6V lithium thionyl chloride ER18505M pack gives about five years on a LoRaWAN smoke head, roughly three years on a 4G Cat-1 device, and about two to three years below minus 20 deg C where cell capacity derates. Above 40 deg C the drift is smaller but self-discharge rises. Wanlin publishes the derated figure for the specified environment rather than the temperate one, because the expensive failure is discovering a two-year life in a five-year budget. Battery telemetry is standard: each device reports remaining capacity, the platform flags below 20 percent (about 90 days warning at normal duty), and replacement is a twist-lock base in under two minutes with no re-addressing.
Answer: Yes, at two levels. Integration to your systems goes through Modbus TCP, MQTT or BACnet IP on the gateway, plus dry fire and fault contacts for a receiving panel or an ARC; weekly server backups include the device history. Alerting is where these projects succeed or fail: the console maintains named groups (typically 30 recipients with paid expansion), routes alarm, fault, low battery and offline events to different groups, supports notification through WhatsApp alongside SMS, email and voice, and applies an escalation timer - commonly ten minutes of unattended alarm before addressing tier-one escalation, with normal mode sounding all units within 60 seconds of any trigger unless someone intervenes. Access is browser-based on Windows, macOS, Android and iOS with role-based permissions, so the responsible person has evidence rather than a phone call.
Answer: EN 54-25 covers the radio path only, not the devices on it. A complete file pairs it with EN 54-2 and EN 54-4 for the control and indicating equipment, EN 54-7 for smoke heads, EN 54-5 for heat classes A1R, A2S, BR and CS, EN 54-11 for call points Type A indirect operation, EN 54-3 for sounders and EN 54-23 for visual devices. Add the national approval route on top: CE and UKCA marking, CCCF for China, FCC Part 15 for the US radio, SASO or SABER for Saudi Arabia, EAC for Eurasia, CCCF for any China scope and local radio licensing - the frequency plan must be legal in the destination, which is why 868 MHz, 915 MHz and 433 MHz variants are separate SKUs rather than one part number.
Answer: Three things in order: siting, sensing logic, then acknowledged operating modes. Siting means keeping heads out of bathroom and sluice steam plumes, away from air supply outlets and at least 0.5 m from obstructions; most chronic false alarm histories trace to three badly located devices. Sensing logic means dual-criteria smoke and heat elements with coincident confirmation, which typically cuts unwanted activations by 80 to 90 percent for a smouldering response penalty of roughly 20 seconds. Operating modes then give humans a lever: a password-protected investigation mode delays the general alarm by a fixed five minutes after a single device trigger, automatically cancelling if a second device on the same floor activates, plus test and evacuation modes and a scheduled daily platform check-in.
Answer: Yes, and that is the point of a self-contained radio device with a standard mounting plate. Devices carry their identity with them, so re-homing to a different gateway is a re-registration plus a placement check, typically under one working day for a floor. For temporary installations the preferred arrangement is a bolt plate or band clamp rather than a screw base, so the units travel with the hoarding or the stand. Nuisance: IP67 units are specified wherever wash-down, rain or dust is expected, and lithium cells are replaced before each deployment rather than on test, because the cost of one failed device on day one exceeds the cost of the cells.
Answer: MOQ is typically 50 pieces per model for a mixed order with factory-direct EXW Shenzhen pricing, FOB, CFR, CIF and DDP available, lead time 18 to 35 days depending on radio SKU and certification scope, 24 to 60 months warranty by product line, and OEM labelling, manual artwork and packaging customisation supported from the first container. Platform ownership is usually the sticking point in three-year service contracts: Wanlin will deploy a private hosted cloud instance on a three-year prepaid subscription with source code and administration transferable at any point, including on early termination, so end-of-contract handover to the client's own IT does not depend on goodwill. Spare units are shipped with the commissioning spares list, not quoted later as emergency replacements.
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: Salt-exposed marina store, Auckland, New Zealand. Two seasons had destroyed the previous devices. This installation uses IP67 units with conformal-coated boards, 316 stainless fixings and gateways hung under the roof purlins, and the yard manager asked for heartbeats to be shortened from fifteen to three minutes so a dead device surfaces within one shift. Two further salt seasons, no enclosure failures, and the useful record is that the failure evidence from the previous generation was used to write this specification rather than being filed. Spares holding for this site sits at 7 percent of the installed population, sized against a 22-month battery replacement round rather than a full panel swap.
Case 2: Freezer and cold chain facility, Helsinki, Finland. Putting standard heads inside a minus 28 deg C room triples maintenance because every intervention becomes a cold-suit entry. The agreed design keeps detection in the ante-rooms and corridor, with heat-only units rated to minus 40 inside the freezer, and documents the resulting later detection time inside the freezer volume. The plant engineer chose this trade-off knowingly and recorded why, which is exactly the sort of candour an insurer's engineer recognises when reviewing a fire strategy. Fire brigade liaison accepted the WANLIN-307 cause-and-effect matrix after a witnessed test across 181 devices, with the investigation hold set to 3 minutes to suit the local response plan.
Case 3: Mixed-voltage transit depot, Bogota, Colombia. The site has 110V in the maintenance pits and 220V in the administration block. Specifying wide-input 100-240V supplies across every mains device removed fourteen step-down transformers and their heat load, and the fuelling lane was covered with antenna extensions from outside the classified boundary. Eighteen months of no electrical incompatibility closed the one open question the insurer had flagged, and the procurement note now reads: specify input range first, emitter second. Spares holding for this site sits at 9 percent of the installed population, sized against a 30-month battery replacement round rather than a full panel swap.
Case 4: Three-level concrete car park, Warsaw, Poland. Predictive modelling said one gateway per level; the field-strength walk said otherwise, and each level gained an extra unit sited at the ramp transitions where radio actually moves between floors rather than at the geometric centre. Every space now reports better than minus 95 dBm with a 15 dB margin, and the supplier's practice of surveying before and after - rather than trusting the model - is the reason this aesthetic change did not turn into a variation order. Fire brigade liaison accepted the WANLIN-307 cause-and-effect matrix after a witnessed test across 207 devices, with the investigation hold set to 5 minutes to suit the local response plan.
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:
| Tier | Annual Volume | Discount | Exclusivity | Support |
|---|---|---|---|---|
| Authorized Reseller | USD 30,000+ | 0% (list price) | No | Standard warranty per family |
| Regional Distributor | USD 100,000+ | 22% off list | Single country | Co-marketing USD 6,000/year, joint certification cost-share |
| Strategic OEM Partner | USD 320,000+ | 32% off list | Multi-country | Dedicated engineering team, joint roadmap, 18-month price lock |
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.
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.
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working_principle: Photoelectric light-scattering detection with a dual-wavelength chamber, stray-light rejection and a supervised radio stack with confirmed uplinks sensing_element: Dual infrared plus blue LED optical chamber with drift compensation, temperature-compensated gain and a sealed labyrinth alarm_threshold: 0.08-0.15 dB/m obscuration with three sensitivity levels, remote threshold reconfiguration over the downlink accuracy_class: EN 14604 and GB 20517 responsiveness, drift compensation to +/-0.02 dB/m over 12 months, remote sensitivity verification response_time: Alarm within 8-30 s to EN 14604 test fires, uplink to the cloud platform within 5 s on LoRaWAN SF9 and within 12 s on NB-IoT power_supply: 3.6V ER18505M cell, 3-year service life at 12 uplinks per day on the 4G SKU power_consumption: 16 uA standby, 210 mA peak transmit on 4G, 32 mA in alarm output_signal: 4G LTE Cat-1 MQTT uplink on B1/B3/B5/B7/B8/B20 with TLS 1.2, direct to the cloud platform without a gateway coverage_area: Up to 80 m2 at 6 m mounting height per EN 14604, 60 m2 in high-airflow corridors alarm_output: Integral 85 dB(A) at 3 m sounder plus platform push notification, SMS and voice call through the connected gateway ip_rating: IP40 indoor standard, IP54 with the gasket accessory for kitchens and plant rooms operating_temp: -10 deg C to +55 deg C humidity_range: 10-95% RH non-condensing housing_material: Flame-retardant ABS V-0 housing, UV-stabilised white finish, twist-lock base with tamper release dimensions_weight: 104 mm diameter x 48 mm height, 168 g net including the cell certifications: EN 14604 / CE / RoHS / REACH / FCC Part 15 / GB 20517 CCCF / 4G LTE Cat-1 carrier acceptance