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 industrial sites, buyers should first define the protected space, required local alarm behaviour, reporting method, power arrangement and destination-market evidence.
This page is written for industrial, warehouse and facility safety 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 Industrial Fire Detection Systems for System Integrators affect selection?
For this site's industrial sites focus, the planning lens is “Industrial Fire Detection Systems for System Integrators.” Avoid selecting from a catalogue name alone. Record the application, expected operating environment, power strategy and reporting workflow before comparing models.
System integrators should also describe gateway placement, network ownership, event recipients, escalation rules and any required API or platform handoff.
If the exact configuration is absent from the available evidence, mark the claim pending review instead of extending a result from another variant.
Existing site context: Explore Industrial Fire Detection Systems for System Integrators from Wanlin Fire, including system options, application guidance, compatibility information and support for distribution and projects. Use that context to define the application; it does not replace model-specific technical or compliance review.
The maintenance plan should identify battery or power checks, functional testing, device replacement, event escalation and ownership of any connected service.
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.
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.
Who confirms destination-market acceptance?
The importer or another qualified party familiar with the destination requirements should confirm acceptance against current documents before an order is represented as market ready.
How should a buyer compare LoRa and cellular reporting?
Compare gateway dependence, local coverage, carrier availability, operating cost, commissioning, outage behaviour, event latency and the evidence required for the chosen radio hardware.
Are product-family brochures sufficient for procurement approval?
No. Brochures support initial selection, but formal approval should use model-specific specifications, configuration records, applicable evidence, label artwork and current instructions.
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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