Detect and alarm locally
The detector must provide its intended local audible and visual warning independently of cloud connectivity.
Documented model reference
WANLIN-307 LoRa 920 MHz wireless smoke alarm
This page records a supplied export parameter set for a WANLIN-307 LoRa 920 MHz configuration. It does not state that every WANLIN-307 variant uses the same radio, battery, firmware or evidence package.
Open the WANLIN-307 product passport · Review the evidence center
System architecture
How should a wireless smoke alarm project be designed?
Define the radio path
Freeze frequency, protocol, gateway, antenna, firmware and site coverage assumptions before ordering.
Verify the remote workflow
Confirm event receipt, account ownership, notification paths, offline behaviour and maintenance responsibilities.
Supplied export parameter set
WANLIN-307 LoRa 920 MHz documented parameters
Evidence boundary: These values come from the export parameter standard supplied by Wanlin. Final production approval still requires the controlled specification, SKU/BOM, sample, label and matching evidence.
| Communication | LoRa 920 MHz |
|---|---|
| Rated working voltage | DC 3 V |
| Battery capacity | 2500 mAh |
| Standby current | ≤ 6 μA |
| Alarm current | ≤ 100 mA |
| Sound pressure | > 80 dB(A) at 3 m directly in front |
| Infrared detection reference | 120° angle; 4 m distance |
| Operating temperature | −10 °C to +50 °C |
| Relative humidity | ≤ 95% RH at 40 °C ± 2 °C |
| Alarm output | Audible and visual alarm |
| Approximate weight | 140 g including battery |
| Parameter-sheet execution standard | GB 20517-2006 |
Important: The listed execution standard is not presented as a third-party certificate. LoRa 920 MHz is not by itself proof of Brazilian or other destination-market approval. Radio settings and applicable local requirements must be reviewed before shipment.
Site-specific planning lens
Wireless smoke alarms for Standalone Smoke Alarm Sourcing: Fire Safety Projects
Use the focus of this site—Standalone Smoke Alarm Sourcing: Fire Safety Projects—to define the protected space, expected alarm workflow, receiving architecture and response responsibility. A wireless feature should solve a documented project constraint, not replace fire-risk assessment, installation design or local acceptance.
For Brazil-oriented LoRa 920 MHz projects, record the intended frequency plan, gateway location, building materials, range survey, radio evidence and local homologation decision. Do not assume that a generic LoRa label covers every deployment.
Buyer questions
Wireless smoke alarm FAQ
What is a wireless smoke alarm?
A wireless smoke alarm detects smoke locally and provides an audible and visual warning while a defined radio path can report an event to a compatible gateway or monitoring platform. Local alarming and remote reporting are separate functions that must both be specified.
Is every WANLIN-307 version a LoRa 920 MHz product?
No. WANLIN-307 is a model family with multiple possible communication and power configurations. This page records a supplied LoRa 920 MHz export parameter set; the ordered SKU, BOM, label and matching documents must be confirmed before quotation or production.
Can LoRa 920 MHz be used in Brazil?
Brazil commonly uses spectrum within the 902–928 MHz region, but a frequency label alone does not establish legal market access. Confirm the exact radio plan, module, output settings, local homologation requirements and project acceptance before shipment.
Are LoRa, 433 MHz, 4G and NB-IoT versions interchangeable?
No. They can use different radio hardware, gateways, subscriptions, antennas, firmware and regulatory evidence. Treat each communication path as a controlled configuration.
Does GB 20517-2006 prove destination-market certification?
No. It is shown here only as the execution standard listed in the supplied parameter set. It is not presented as third-party certification or proof of acceptance in another country.
What should an importer send for technical review?
Send the destination country, application, quantity, required radio architecture, gateway or platform requirement, packaging language, target schedule and any mandatory certification or approval criteria.
Request a configuration-specific export review
Send the destination country, application, quantity, required reporting path and approval criteria to wanlinfirecontrol@163.com. Any formal claim remains subject to exact-model evidence review.