WANLIN-303
Standalone photoelectric smoke alarm family
Review standalone, 433 MHz, LoRa or 4G candidates only after the exact hardware and radio version is identified.
Direct answer
What does standalone detection mean?
An export standalone smoke alarm detects smoke and provides a local audible warning without requiring a conventional fire alarm control panel. For residential safety, buyers should first define the protected space, required local alarm behaviour, reporting method, power arrangement and destination-market evidence.
This page is written for residential, apartment and property-management buyers. It is a product-family selection resource, not a claim that every variant has the same approval, radio module or market access.
Model reference image
Review the exact configuration, not only the family name
The image identifies a WANLIN-307 family reference. Radio, power, label and evidence scope can differ by controlled configuration; confirm the SKU/BOM before using any formal product or compliance statement.
Open the WANLIN-307 product passport · Review the public evidence center
Verified manual data
WANLIN-307 documented configuration
Evidence scope: WANLIN-307 user manual, Ver 1.0. Documented manual configuration only; radio, platform, power and market variants require separate SKU/BOM confirmation.
| Detection principle | Infrared photoelectric smoke sensing with MCU processing |
|---|---|
| Rated working voltage | DC 3 V |
| Battery capacity | 2400 mAh |
| Standby current | ≤ 6 μA |
| Alarm current | ≤ 100 mA |
| Sound pressure | > 80 dB(A) at 3 m directly in front |
| Operating temperature | −10 °C to +50 °C |
| Relative humidity | ≤ 95% RH at 40 °C ± 2 °C |
| Alarm output | Audible and visual alarm |
| Low-voltage indication | Below 2.7 V; indicator and one chirp about every 40 s |
| Normal indicator | Indicator illuminates about every 40 s |
| Approximate weight | 140 g including battery |
| Manual-listed execution standard | GB 20517-2006 |
| Installation reference | GB 50116-2013; final layout must follow project design requirements |
Important: “GB 20517-2006” is presented here as the execution standard stated by this manual. This wording is not a third-party certificate claim and does not establish destination-market acceptance. The manual also advises against use where relative humidity exceeds 95%, air speed exceeds 5 m/s, or heavy dust, water mist, steam, oil mist or corrosive gas is present.
Site-specific planning lens
How does Battery-Powered Smoke Alarms for Residential Projects affect selection?
Existing site context: Wanlin Fire provides Battery-Powered Smoke Alarms for Residential Projects, with product selection guidance, technical specifications, OEM/ODM support and project supply for global buyers. Use that context to define the application; it does not replace model-specific technical or compliance review.
433 MHz, LoRa, 4G and NB-IoT describe different communication paths; they are not interchangeable labels and may change the hardware, infrastructure and regulatory review.
Destination-country acceptance should be reviewed by the importer or another qualified local party before labels, packaging and order documents are approved.
Distributors should confirm private-label scope, artwork ownership, manual languages, sample approval and how production changes will be communicated.
For this site's residential safety focus, the planning lens is “Battery-Powered Smoke Alarms for Residential Projects.” Avoid selecting from a catalogue name alone. Record the application, expected operating environment, power strategy and reporting workflow before comparing models.
Last reviewed: 2026-11-02 · Reviewed by Wanlin Fire Equipment for product-family and evidence-boundary consistency.
Which evidence should an importer request?
- Identify the destination market
- Freeze the exact configuration
- Match evidence to the configuration
- Review labels and instructions
- Approve the production reference
How do the Wanlin model families differ?
WANLIN-307
Connected standalone smoke alarm family
Candidate configurations may include standalone, 433 MHz, LoRa, 4G or NB-IoT; availability and evidence must be confirmed per SKU/BOM.
WANLIN-309
Wireless reporting smoke alarm family
Use when the project requires a local alarm plus a defined reporting path; verify gateway, network and destination-market requirements.
WANLIN-370
Combination alarm reference
A smoke/heat/carbon-monoxide combination concept is not interchangeable with a smoke-only alarm; confirm the required sensing functions first.
Answers for buyers
Standalone smoke alarm questions
Can one certificate be applied to every WANLIN smoke alarm variant?
No. A certificate or test report must match the exact model, hardware or radio configuration, legal certificate holder, standard, validity period and destination market.
How should connected alarms behave during a network outage?
The project team should document local alarm behaviour, event buffering or retry expectations, supervision, user notification and the party responsible for restoring connectivity.
Should importers approve the label before production?
Yes. Review the exact model, legal manufacturer or certificate holder where applicable, ratings, warnings, destination language and document references before production artwork is released.
When should a combination alarm be selected?
Select a combination concept only when the project explicitly requires its sensing functions. A smoke, heat and carbon-monoxide combination device is not automatically interchangeable with a smoke-only alarm.
Can a local-only alarm later become a connected alarm?
Only if the selected hardware and product architecture support that path. Do not assume a radio module can be added to every local-only version; confirm the exact SKU/BOM and gateway requirements.
Request a model-specific export review
Send the destination country, application, quantity, reporting method, preferred power arrangement and required delivery schedule to wanlinfirecontrol@163.com. Recommendations and formal claims remain subject to exact-model evidence review.
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