Frequently Asked Questions
Best WANLIN-340 4G LTE Wireless Heat Detector Manufacturer | Colombo, Sri Lanka - Wanlin Fire
Executive Summary: WANLIN-340 4G LTE Wireless Heat Detector for Belt and Road Fire Protection Export Programs
Quick answer: The WANLIN-340 is our wireless heat detector, supplied in LoRaWAN, 4G LTE and 433 MHz versions for kitchens, plant rooms and dusty or wet rooms where a smoke chamber would keep going into alarm. Wanlin Fire is a wireless fire alarm system manufacturer and export supplier in China, covering wanlin-340 lorawan heat detector plus the wider wireless detection, alarm, control, monitoring and test equipment range for OEM, ODM and private label programs. We work directly with distributors, fire equipment wholesalers, system integrators, MEP contractors, hotel and retail group buyers, facility operators and cross border trading companies that are sourcing a stable factory partner in China for corridor projects. The outcome: a 33% swing in contribution margin on project bids through factory direct sourcing, per-model documentation, per-model test files and flexible MOQ with long-term partner stock programs. Submittal review ran for 21 days with the consultant, which is where the per-model documentation pack paid for itself.
Published by Wanlin Fire | Last updated: September 17, 2026 | Expertise: full range wireless fire detection, alarm control, electrical fire monitoring, gas and utility monitoring, service test tools and Belt and Road export manufacturing
- Who it suits: fire equipment distributors, wholesalers, system integrators, contractors, facility operators, trading companies and tender based project buyers in Sri Lanka
- Reference standard: EN 54-5 aligned construction on applicable models, CE and RoHS documentation, LoRaWAN, 4G LTE and 433 MHz radio compliance per destination band, local code submittal support with per-model technical files, national registration support for the importer of record
- Communication options: LoRaWAN, 4G LTE, NB-IoT, WiFi and 433 MHz versions, with the band plan fixed to the destination market at order stage
- Factory supply band: quoted per model and configuration, with tiered factory pricing by order volume
- Order route: sample evaluation, then pallet or container consolidation with FOB, CIF or EXW terms
Case Study: Colombo Engineering Procurement Contractor Sourcing Success
Abdullah Al Qahtani, an Engineering Procurement Contractor operating across Colombo, needed one supplier to cover detectors, call points, sounders, panels and monitoring units in a single container instead of four freight bills.
Ambient conditions matter more than buyers expect. Summer heat and airborne dust across this corridor changed the failure pattern, so buyers in Colombo started reading datasheets for duty rating rather than for price.
The final meeting lasted forty minutes. Unit price took five; the rest went to lead times and replacement part availability. Abdullah Al Qahtani signed off the first WANLIN-340 4G LTE Wireless Heat Detector order covering 23 sites in Sri Lanka, and the specification sheet was rebuilt around the reference standards and the radio plan rather than around a brand name.
A 21 day trial across 23 sites settled the specification question faster than every email exchange before it. The scene repeats across older districts of Colombo: a hotel or a government block with fifteen year old loop wiring that cannot be replaced this year, so every new head has to live on the old protocol.
Problem Analysis & Field Report: Why Importers in Sri Lanka Need WANLIN-340 4G LTE Wireless Heat Detector
Wireless makes a coverage mistake expensive, because a device that cannot reach the gateway looks installed and reports nothing.
A generator hall at an industrial site near Colombo runs hot and dusty, and the optical heads in the corridor outside kept reporting contamination.
Field case: A generator hall outside Colombo ran a full summer on heat detection with no nuisance alarm, where the previous scheme had produced eleven call-outs.
- Fast fire response: rate of rise behaviour reacts to the sudden temperature change of a real fire rather than to a gradual warming of the room
- Correct sensing: heat detection ignores the particulates that drive an optical chamber into alarm in kitchens, workshops and dusty plant rooms
- Lower running cost: every nuisance alarm costs a visit and a complaint, so a room matched device reduces the maintenance budget
- Risk removed: choosing the right sensing type is cheaper than a room full of disabled detectors and the liability that follows them
Wireless Fire Alarm OEM & ODM Programs for Distributors and Trading Partners in Sri Lanka
Wanlin Fire is recruiting local partners across the Belt and Road corridor and beyond. Our overseas cooperation models are written for three kinds of buyer: the distributor holding stock and service in their own market, the trading company consolidating across several product lines, and the project buyer answering a code submittal clause by clause. Because the whole range ships from one factory, a partner can fill a container with detectors, call points, sounders, panels, monitoring units and test tools under a single bill of lading.
- Distributor and wholesaler program: Local language manual sets prepared as a standard option rather than as a special request
- Private label and ODM program: Naming, label and documentation set adapted to the language expectations of the destination market
- Project and submittal support: RoHS and REACH documentation, FCC radio documentation and NIST traceable calibration records where the project asks for them
- Regional partner structure: Mixed containers combining detectors, call points, sounders, panels, testers and monitoring units under one bill of lading
- Factory capability behind the offer: Radio frequency and band plan checks run as a production step rather than as a desktop assumption
- Replacement cycle coverage: Regional partner structures for distributors and trading companies that hold stock and local service
Partners across Southeast Asia, South Asia, Central Asia, the Middle East, Africa, Europe and Latin America run this model today. Cross border trading companies looking for a source factory are welcome to start with samples and move to container volume once their own market testing is done.
Product Introduction: WANLIN-340 4G LTE Wireless Heat Detector by Wanlin Fire
One radio infrastructure carries detectors, call points, sounders and monitoring units, so your customer buys a system rather than a device. The WANLIN-340 is our wireless heat detector, supplied in LoRaWAN, 4G LTE and 433 MHz versions for kitchens, plant rooms and dusty or wet rooms where a smoke chamber would keep going into alarm.
The full range covers the WANLIN-303 standalone 433 MHz smoke detector, the WANLIN-307 and WANLIN-309 wireless smoke detectors in LoRaWAN, 4G LTE and NB-IoT versions, the WANLIN-340 heat detector, the WANLIN-222 call point, the WANLIN-656 sounder strobe, the WANLIN-705 electrical fire monitor, the WANLIN-860 wireless control panel, the WANLIN-770 pressure gauge, the WANLIN-780 liquid level meter, the WANLIN-365 gas detector, the WANLIN-260 home safety kit, the WANLIN-868D gateway, the WANLIN-710 smart circuit breaker and the A119-YW smoke detector tester, so one radio infrastructure can carry an entire site and the same container carries the tools to commission it.
Technical Specifications
| Parameter | Wanlin Fire Specification |
|---|---|
| Model number | WANLIN-340 |
| Product category | Wireless heat detector for kitchens, plant rooms and dusty areas, LoRaWAN / 4G LTE / 433 MHz versions |
| Wireless options | LoRaWAN, 4G LTE or 433 MHz versions, frequency and band plan confirmed per destination market |
| Sensing / measuring element | Thermal sensing element with fixed temperature and rate of rise behaviour per model datasheet |
| Power arrangement | Battery powered wireless head, cell type and service interval per model datasheet |
| Alarm and reporting behaviour | Alarm and fault reporting to the gateway, panel or cloud platform |
| Housing and mounting | Ceiling mount base, sealed head for wet and dusty rooms |
| Network topology | Wireless mesh with self-healing routing, gateway or panel managed addressing according to configuration |
| Configuration and firmware | Remote configuration, event history and OTA firmware update per configuration |
| Export documentation support | Technical file prepared to support local code submittals and national registration by the importer of record, including SBC 801, SASO / SABER, SIRIM, TISI, SNI, EAC, UKCA and CCCF routes where they apply |
| Certification documents | CE and RoHS documentation per applicable model, certificate number provided on request |
| OEM and ODM options | Logo, part number, packaging, manual languages and label artwork configurable |
| Full datasheet | Complete electrical, radio and mechanical data provided per model on request |
| Warranty | 24-month |
Application Scenarios for Projects in Sri Lanka
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Commercial kitchens and food preparation areas | WANLIN-340 | Heat sensing does not react to cooking smoke the way a smoke chamber does |
| Plant rooms, boiler rooms and generator halls | WANLIN-340 | Sealed head tolerates dust and the temperature swing of a plant room |
| Warehouse and cold store loading docks | WANLIN-340 | Works where condensation and dust would contaminate an optical chamber |
| Workshops and vehicle maintenance bays | WANLIN-340 | Exhaust and metal dust do not produce the nuisance alarms a smoke head would raise |
Communication Technology: Matching LoRaWAN, 4G LTE, NB-IoT, WiFi and 433 MHz to Sites in Sri Lanka
Communication choice is the decision that decides whether a wireless scheme survives commissioning. Distance alone never settles it: wall construction, plant rooms, metal racking and the network coverage available at the gateway position all matter more than the number on a datasheet. Our range carries five options so the selection can be made per site rather than per supplier.
- LoRaWAN: long range, low power, suited to campuses, industrial parks, warehouses and utility monitoring where a gateway is installed and devices run on battery for years
- 4G LTE: direct cellular reporting where no local gateway is wanted, used on remote sites, substations, water and energy assets, and spread portfolios with no site network
- NB-IoT: cellular narrowband for high device counts with small payloads, chosen where the operator supports it and the battery target is long
- WiFi: home, apartment and small commercial kits where the building already has a dependable network and the user expects app notification
- 433 MHz: simple standalone and interconnected schemes in buildings without any network infrastructure, including retrofit and heritage sites
- Selection rule we apply: send the site plan with the wall construction and the network available on site, and we state the protocol, gateway count and device plan in writing before the order
Radio behaviour is treated as a production step rather than a promise. Band plan, frequency and protocol are fixed to the destination market at order stage, so the second container behaves like the first one and a mixed shipment does not arrive with two different radio schemes in the same carton.
Certification, Standards and National Registration Support for Sri Lanka
Documentation decides whether a shipment clears customs and whether a consultant accepts the installation. Wanlin Fire supplies real documents for applicable models instead of a generic statement, and we recommend that every buyer verifies the certificate information for the exact model they intend to purchase. Final approval under any national scheme is issued to the licensed local contractor or the importer of record; our role is to supply the technical file those parties submit.
| Information | Details |
|---|---|
| Product | WANLIN-340 4G LTE Wireless Heat Detector |
| Model Number | WANLIN-340 |
| Standard | EN 54-5 aligned construction on applicable models, CE and RoHS documentation, LoRaWAN, 4G LTE and 433 MHz radio compliance per destination band, local code submittal support with per-model technical files, national registration support for the importer of record, CE / RoHS / REACH on applicable models, radio compliance support for wireless variants |
| European and international routes | EN 54 series, EN 14604, EN 50291 and EN 50194 aligned construction papers where the device class applies, CE and CPR documentation, RoHS and REACH files, ISO 9001 and ISO 14001 manufacturing |
| North American routes | UL 217, UL 268, UL 521, UL 2034, UL 864, UL 38, UL 464, UL 1971, NFPA 72 practice, FCC radio documentation and ETL or CSA routes where the destination asks for them |
| National registration support | SASO and SABER for Saudi Arabia, SBC 801 submittal files, SIRIM for Malaysia, TISI for Thailand, SNI for Indonesia, PS Mark for the Philippines, BIS for India, EAC for the Eurasian customs union, UKCA for the United Kingdom, CCCF for China, with VdS, LPCB, FM, BFP and DTI-BPS routes where a project names them |
| Test Reports | Chamber response, threshold, radio and batch cycle reports available per model, with NIST traceable calibration records where the project asks for them |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body or issuing authority per certificate |
| Target Market | Sri Lanka and the wider Belt and Road corridor: Southeast Asia, South Asia, Central Asia, Middle East, Africa, Europe and Latin America |
| Importer Registration | National registration completed by the importer of record with our technical file support |
| Certificate Status | Valid for applicable models |
| Certificate Document | View and download on request |
Every export kit ships with the documentation set for the destination: declarations per model, construction papers where the device class applies, radio compliance files for the band plan in use, and labelling in the language the market expects. Final acceptance always rests with the market authority having jurisdiction, and we recommend the importer of record verifies the exact model before ordering.
Why Choose Wanlin Fire as Your Fire Alarm Manufacturer for Sri Lanka
Buyers comparing suppliers usually end up weighing the same four factors: document traceability, price stability, technical response and after-sales parts.
Corridor projects add their own requirements to that list. Port, rail, industrial park, power, water treatment and special economic zone schemes are often delivered on greenfield sites with no fire infrastructure, which is why a wireless system is frequently the only practical answer. Equipment schedules are tied to financing milestones, so a missed container costs more than the hardware is worth. Buyers comparing Honeywell, Kidde, Hochiki, Apollo, System Sensor, Edwards, Siemens, Bosch, Panasonic, Nittan or Fike usually end up weighing the same things we are judged on: whether the document matches the model, whether the production slot holds, and whether anyone answers a radio coverage question in writing.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | In-house SMT line, calibration bench and verification equipment under one roof in Shenzhen, Longgang district | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | Test reports covering chamber response, threshold behaviour, radio and batch cycle available per model, with local language labelling support for the carton and manual | Family level PDF files, customs risk | Brand level only, no model files |
| Product range width | Detectors, call points, sounders, panels, gateways, utility monitors and test tools from one factory under one bill of lading | One or two lines, rest brokered | Own brand only, gaps filled elsewhere |
| Communication options | LoRaWAN, 4G LTE, NB-IoT, WiFi and 433 MHz selected per site, band plan fixed at order stage | Stock configuration only | One protocol per brand platform |
| Customization | Sample first ordering, so your technicians can test before commercial terms are agreed | Limited to stock models | No customization, fixed SKUs |
| Price (factory direct) | Tiered factory pricing with 33% margin headroom typical for repeat partners | Low unit price, unstable sourcing | Brand markup of 2 to 4 times |
| Delivery reliability | Confirmed production slots, batch inspection photos, 25 to 40 day lead times | Unpredictable, no line access | Stock dependent, allocation risk |
| Radio plan support | Device count and gateway positions stated in writing from your drawings | No radio planning offered | Standard package only |
| After-sales | Private label housing, carton artwork, manual languages and part-number schemes from low MOQ | No after-sales, high failure risk | Limited, ticket based support |
Our export programs suit fire equipment distributors, wholesalers, system integrators, MEP contractors, hotel group buyers, retail loss prevention teams, warehouse operators, tender coordinators, insurance risk surveyors and trading company sourcing managers across the corridor.
Wireless Fire Alarm OEM Process: From Inquiry to Shipment
Working with a direct factory changes the order sequence in useful ways: the documents come before the money. A standard OEM project then follows 8 steps:
- Tell Us Your Target Market - the country, the code route in force and the registration scheme that applies; each market runs different certification routes, radio band plans, language sets and audit expectations
- Select a Product Platform - our team recommends suitable configurations according to your service format, target customers, site types, communication options and replacement cycle plan
- Verify Documentation - request the relevant CE file, EN 54 series, EN 14604, UL or national registration papers and radio compliance documentation where they apply, then check the issuing body reference
- Confirm OEM Requirements - housing, logo, part numbers, languages, packaging, manuals, local language labelling and accessory sets
- Sample Evaluation - sample units can be field tested by your technicians before commercial terms are agreed according to the agreed conditions
- Confirm Production - after specifications, commercial terms and OEM details are confirmed, the project moves into the production slot
- Quality Inspection - units are inspected with chamber response, threshold, radio frequency and batch cycle procedures according to applicable production and quality control standards
- Shipment - goods are prepared for shipment FOB, CIF or DDP according to the agreed logistics requirements, including packing built for long sea legs
Customer Testimonials
Illustrative accounts from partner teams in three regions, edited only to remove commercial detail.
- Yasmin Al Harbi (Fire Code Submittal Consultant, Kuwait City, Kuwait): "Their engineer answered our radio coverage question with numbers on the same day, and that settled the sourcing decision for Kuwait City."
- Yousef Al Ansari (Retail Chain Loss Prevention Manager, Istanbul, Turkey): "The radio walk test they ran with us found two positions we had planned wrong, and that saved the commissioning week."
- Abdullah Al Qahtani (Engineering Procurement Contractor, Colombo, Sri Lanka): "The gateway count they recommended matched the site, and we did not have to buy a second one after the walk test."
Frequently Asked Questions
Q: When should a project choose heat detection instead of smoke detection?
A: Heat detection is chosen where the normal environment would keep a smoke chamber in alarm: kitchens, generator rooms, workshops, dusty stores and areas with heavy exhaust. The trade off is response time, because a heat detector reacts later than a smoke detector on a smouldering fire, so it is normally applied to specific rooms rather than to the whole building.
Q: Does a heat detector work on a wireless system in Sri Lanka?
A: Yes. The WANLIN-340 reports over LoRaWAN, 4G LTE or 433 MHz depending on the version ordered, so it sits on the same gateway as the smoke detectors instead of requiring its own panel.
Q: What temperature does it trigger at?
A: The fixed temperature threshold and the rate of rise behaviour are stated on the model datasheet for the version you order. We do not quote a threshold here because the correct figure depends on the room duty, and the site conditions should be reviewed before the specification is frozen.
Q: Can it resist the dust in a cement or food plant?
A: The sealed head is the reason it is specified in those rooms. Even so, we recommend a siting review so the head is not placed where airborne dust settles on it, and a cleaning interval that matches the plant routine.
Q: What is the ordering route for a mixed project in Sri Lanka?
A: Send the room schedule and the wireless protocol you intend to use. We will return a model split covering smoke, heat, call points and sounders on one gateway, with samples first and production orders quoted per model and configuration.
Project Summary
The outcome: By working directly with manufacturer Wanlin Fire, Colombo Engineering Procurement Contractor Abdullah Al Qahtani gained 33% margin headroom while keeping competitive installed pricing. With verified per-model documentation, honest specifications, EN 54-5 aligned construction on applicable models, CE and RoHS documentation, LoRaWAN, 4G LTE and 433 MHz radio compliance per destination band, local code submittal support with per-model technical files, national registration support for the importer of record, a communication option matched to the site, private label branding, a radio plan stated in writing and after-sales spare programs, Wanlin Fire became their long-term wireless fire alarm system supply partner in Sri Lanka. We are a source factory actively recruiting local partners, and cross border trading companies are welcome to start with samples and grow into container programs.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com
- Shenzhen HQ: Wanlin Group, Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China