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 Warehouses affect selection?
For this site's LoRa systems focus, the planning lens is “LoRa Wireless Fire Alarm Systems for Warehouses.” A useful specification begins with the protected space and maintenance plan, not with a radio acronym or a marketing family name.
System integrators should also describe gateway placement, network ownership, event recipients, escalation rules and any required API or platform handoff.
A family-level brochure is useful for selection but is not proof that every radio, enclosure, battery or sensor configuration has identical market acceptance.
Existing site context: Compare Wanlin Fire lora wireless fire alarm systems for warehouses, technical parameters and application options for commercial, industrial and retrofit fire safety projects. Use that context to define the application; it does not replace model-specific technical or compliance review.
433 MHz, LoRa, 4G and NB-IoT describe different communication paths; they are not interchangeable labels and may change the hardware, infrastructure and regulatory review.
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
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.
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.
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.
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.
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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