Export heat detection resource
Review WANLIN-340 standalone heat detector selection for dusty facilities and maintenance decisions, including verified manual data, installation limits and.
Direct answer
A standalone heat detector monitors temperature and provides a local audible and visual warning when its defined alarm condition is reached, without requiring a conventional fire alarm control panel. It should be selected where the fire strategy and normal environment support heat detection.
Heat detection does not replace smoke detection automatically. A qualified project review should decide the detector type and placement for each space.
Documented model
The supplied Ver 1.0 manual documents a WANLIN-340 temperature-sensing alarm and describes an NB-IoT reporting module. This does not prove that every WANLIN-340 SKU contains the same radio, platform or evidence scope.
Read the WANLIN-340 user manual · Review the evidence center
Verified manual data
Evidence scope: User manual Ver 1.0. Values apply to the documented configuration only. The listed standards are manual statements, not third-party certification claims.
| Detection principle | Temperature sensing with MCU processing |
|---|---|
| Detector classification | Class AS; point-type, fixed-temperature alarm in type-test report Dz2023201944 |
| Rated working voltage | DC 3 V |
| Battery capacity | 2400 mAh |
| Standby current | ≤ 6 μA |
| Alarm current | ≤ 100 mA |
| Sound pressure | 45-75 dB at 3 m directly in front, as stated in the manual |
| Operating temperature | 0 °C to +55 °C |
| Relative humidity | ≤ 95% RH at 40 °C ± 2 °C |
| Alarm output | Audible and visual alarm |
| Low-voltage threshold | Below 2.7 V |
| Normal indicator interval | About 50 s |
| Low-battery chirp interval | 50 s ± 1 s |
| Silence period | About 80 s |
| Dimensions | 100 mm diameter × 47.3 mm |
| Approximate weight | 140 g including battery |
| Manual-listed execution standard | GB 30122-2013 |
| Installation reference | GB 50116-2013; project design requirements govern final layout |
Model-matched test evidence
Shenyang Fire Research Institute, Ministry of Emergency Management issued a type test report (not a product certification certificate) for model WANLIN-340. The report lists 14 samples and a test period of 2023-09-26 to 2023-12-04.
The stated basis is GB 30122-2013 and GB 12978-2003 inspection rules. The report concludes: All applicable GB 30122-2013 items tested in the report were judged compliant.
Two action-temperature results shown are 58.5 °C and 58.3 °C. Initial sound-pressure results for 14 samples range from 70.5 to 72.5 dB. These are report measurements, not guaranteed values for every production unit.
Evidence boundary: the report is dated 2023-12-07 and identifies a Class AS, point-type fixed-temperature alarm. It does not by itself prove that every radio or cloud variant has identical construction, nor does it constitute destination-market approval.
Marketing-material reconciliation: a supplied promotional image states an alarm-action upper limit of 65 °C. That is kept separate from the report's measured sample results of 58.3-58.5 °C and from the manual's operating-temperature range of 0-55 °C.
The manual lists places with dust, retained smoke or vapour, and rooms where smoke detection may be unsuitable. A project review must still confirm detector type and environmental limits.
The manual identifies locations where a fire may develop without an early smoke signature. The project fire strategy should define whether fixed-temperature, rate-of-rise or another method is required.
Kitchens, boiler rooms, generator rooms and drying workshops are examples in the manual. Local design rules, spacing and commissioning requirements remain controlling.
For OEM Fire Alarm Equipment for Export Projects, begin with the expected normal temperature, nuisance conditions and the fire scenario rather than selecting by radio name alone.
Answers for buyers
No. A product manual records operating and installation information; it is not a third-party certificate and does not establish destination-market acceptance.
The documented WANLIN-340 configuration provides local audible and visual alarm functions without a conventional panel. Any remote reporting path must be confirmed for the exact SKU/BOM.
A heat detector may be considered where normal dust, vapour or smoke can make smoke sensing unsuitable. Selection must follow the fire strategy, local rules and the actual environmental limits of the chosen configuration.
Provide the country, application, ambient conditions, ceiling height, quantity, local-only or remote reporting requirement, packaging language and required evidence.
Check detector type, spacing and coverage design, ambient temperature, nuisance conditions, mounting position, maintenance access and applicable local design requirements.
Send the country, application, ambient conditions, quantity, reporting method and evidence requirements to wanlinfirecontrol@163.com.
Last reviewed: 2026-11-02. No local office is claimed; Wanlin Fire manufactures in Shenzhen, China and supports export enquiries.