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
Why separate local alarm and remote reporting?
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?
Where a gateway is used, document the supported device count, coverage assumptions, retry behaviour and response when the upstream network is unavailable.
The enquiry should state country, building use, quantity, sensing functions, communication preference, packaging language and target schedule.
For this site's fire safety projects focus, the planning lens is “429 Too Many Requests.” Treat the alarm, communication path and destination-market evidence as three separate purchasing decisions.
Ask for the current report or certificate scope, product photographs, rating-label artwork and manual revision so the reviewed product can be compared with the ordered product.
Last reviewed: 2026-11-02 · Reviewed by Wanlin Fire Equipment for product-family and evidence-boundary consistency.
What prevents model and certification mismatch?
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.
Before purchase: request a model-specific evidence pack and have the destination-market requirements reviewed by a qualified local party.
Selection sequence
- Define sensing function
- Choose local-only or connected operation
- Select communication path
- Verify power and maintenance plan
- Approve evidence and artwork
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.
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.
Does remote notification replace the alarm sound?
No. Remote event reporting and local audible warning are separate functions. The project specification should define both and identify who responds to remote events.
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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