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
How should buyers define a smoke alarm project?
An export standalone smoke alarm detects smoke and provides a local audible warning without requiring a conventional fire alarm control panel. For LoRa systems, buyers should first define the protected space, required local alarm behaviour, reporting method, power arrangement and destination-market evidence.
This page is written for system integrators planning long-range, low-power fire alarm reporting. 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 LoRa Wireless Fire Alarm Systems for Export Projects affect selection?
A retrofit project should record mounting constraints, existing network availability and whether the buyer expects a self-contained device or integration with a wider platform.
For this site's LoRa systems focus, the planning lens is “LoRa Wireless Fire Alarm Systems for Export Projects.” Freeze the sensing function first, then define how an event is heard locally and how it should be reported beyond the room.
Keep certificates, test reports, declarations, manuals and marketing copy in separate evidence classes; each document answers a different procurement question.
Existing site context: Find practical guidance on Wanlin Fire lora wireless fire alarm systems for export projects, including product selection, system planning, OEM/ODM service and export project support. Use that context to define the application; it does not replace model-specific technical or compliance review.
Project buyers should separate mandatory requirements from preferences so unsupported options can be identified before samples or labels are prepared.
Last reviewed: 2026-11-02 · Reviewed by Wanlin Fire Equipment for product-family and evidence-boundary consistency.
Which standalone alarm options can be reviewed?
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.
How is a purchase specification verified?
Decision rule: use a formal claim only when the evidence is current and matches the model, configuration, legal holder, standard and market. Otherwise the status remains pending verification.
- Certificate is not the same as a test report.
- A declaration is not the same as third-party certification.
- A product manual is not proof of market approval.
Answers for buyers
Standalone smoke alarm questions
Which project details are needed for an accurate recommendation?
Provide the destination country, building type, quantity, required sensing functions, power preference, local-only or remote reporting need, radio or network constraints, packaging needs and target schedule.
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.
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.
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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