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 fire safety projects, buyers should first define the protected space, required local alarm behaviour, reporting method, power arrangement and destination-market evidence.
This page is written for distributors, system integrators and project procurement teams. 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 429 Too Many Requests affect selection?
For this site's fire safety projects focus, the planning lens is “429 Too Many Requests.” Start with the decision that changes the architecture most: local alarm only, or local alarm plus remote event reporting.
The maintenance plan should identify battery or power checks, functional testing, device replacement, event escalation and ownership of any connected service.
Project buyers should separate mandatory requirements from preferences so unsupported options can be identified before samples or labels are prepared.
For a formal compliance statement, match the evidence to the exact model, SKU/BOM, radio or power version, legal certificate holder, standard edition, validity period and destination market.
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
What evidence should an importer review before ordering?
Request the current product specification, model and configuration record, applicable certificate or test report, certificate holder and scope, validity status, label artwork and destination-market compliance review.
What is the difference between a certificate and a test report?
A certificate states a defined certification scope, while a test report records tests on identified samples or configurations. Neither should be extended to an unlisted model or variant.
What should be checked during sample approval?
Check model marking, sensing function, alarm behaviour, communication path, power arrangement, gateway or platform interaction, label artwork, manual revision and the evidence pack.
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.
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.
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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