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 OEM sourcing, buyers should first define the protected space, required local alarm behaviour, reporting method, power arrangement and destination-market evidence.
This page is written for importers, distributors and private-label 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 Beijing Wireless Fire Alarm Systems affect selection?
Existing site context: Wanlin Fire provides Beijing Wireless Fire Alarm Systems, 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.
Remote notification does not replace the local audible warning. Define both functions and the party responsible for receiving and acting on remote events.
For this site's OEM sourcing focus, the planning lens is “Beijing Wireless Fire Alarm Systems.” For export work, a product-family shortlist is only the start; the exact hardware, label, language and evidence pack must follow the selected configuration.
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.
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
Are LoRa, 4G, NB-IoT and 433 MHz versions equivalent?
No. They represent different communication paths and may use different hardware, gateways, network services and regulatory evidence. The exact SKU or BOM must be confirmed before quotation.
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.
Why is the exact SKU or BOM important?
Communication modules, power arrangements, labels and other components may differ within a family. Evidence and purchasing documents should therefore identify the exact controlled configuration.
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.
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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