TL;DR: Built around a twin optical chamber, the WL-PH100 detects smouldering fire signatures from plus 55 C down to minus 10 C ambient and keeps the two-wire loop supervised on older control panels. Wanlin Fire is a fire protection equipment manufacturer in China supplying photoelectric smoke detector and the wider application equipment range for OEM, ODM and private label export programs. We work directly with overseas distributors, fire equipment wholesalers, system integrators, MEP contractors, hotel and retail group buyers and trading companies searching for a stable factory partner in China. What changed: roughly 39% additional margin after the private label change through factory direct sourcing, per-model documentation, Samples were field tested for 16 days across two occupied buildings before anyone discussed pricing., flexible MOQ and long-term partner stock programs.
Published by Wanlin Fire | Last updated: September 14, 2026 | Expertise: fire detection and fire protection application equipment export manufacturing for overseas partners

The procurement team behind Olivia Mitchell in Manila shortlisted three factories on one condition: whoever answers the chamber and threshold questions with numbers gets the order.
Distributors in Manila watched brand reseller margins compress across Philippines, which reopened the private label conversation with Chinese factories.
The procurement committee in Manila built its own weighting sheet, and documentation scored as high as price. Olivia Mitchell signed off the first CE Certified Photoelectric Smoke Detector OEM order covering 15 sites in Philippines, and the specification sheet was rebuilt around the reference standards rather than around a brand name.
Samples were field tested for 16 days across two occupied buildings before anyone discussed pricing. The scene repeats across older estates in Manila: fifteen-year-old loop wiring that cannot be replaced this year, so every new head has to live on the old protocol and panel.
Three field reports from Manila describe the same root cause, and none of them were fixed by swapping brands.
A Government Project Tender Coordinator in Manila opened a storeroom of mixed stock: three photoelectric chamber generations, none of them documented, none of them matching current tender wording.
Field case: A Government Project Tender Coordinator in Manila swapped corridor units to the WL-PH100 construction across 15 floors and the quarterly nuisance call count fell by about 30%, because smouldering response stayed inside the EN 54-7 band while cooking aerosols stopped tripping the head.
Wanlin Fire is recruiting local partners in every export market. Our overseas cooperation models are written for three kinds of buyer: the distributor holding stock and service in their own country, the trading company consolidating across several product lines, and the project buyer answering a tender clause by clause.
Partners in North America, Western Europe, the Middle East, Southeast Asia, South Asia, Oceania, Africa and Latin America run this model today. Export trade companies looking for a source factory are welcome to start with samples and move to container volume once their own market testing is done.
Each variant answers a specific site problem, which means your sales team can choose by scenario instead of by part number. Built around a twin optical chamber, the WL-PH100 detects smouldering fire signatures from plus 55 C down to minus 10 C ambient and keeps the two-wire loop supervised on older control panels.
| Parameter | Wanlin Fire Specification |
|---|---|
| Detection principle | Photoelectric scattered light chamber with twin optical path |
| Standard alignment | EN 14604 domestic smoke alarm variant available |
| Loop supply | DC 9-28 V conventional two-wire loop |
| Current draw | Standby 45 uA, alarm 25 mA at 24 V |
| Sensitivity window | 0.10-0.20 dB/m across EN 54-7 test fires TF1 to TF5 |
| Ambient range | Minus 10 C to plus 55 C, 95 percent RH non-condensing |
| Chamber protection | Insect screen with drift compensation algorithm |
| Housing | ABS white RAL 9003, UL 94 V-0 flame rating |
| Base mounting | Twist-fit standard base, optional relay and Schottky diode versions |
| Certification files | CE declaration of conformity and test report per certified model |
| Warranty | 36-month |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Apartment block common corridor | WL-PH100 | Two-wire hookup keeps retrofit wiring cost down on old risers |
| Student housing communal area | WL-PH100 | Drift compensation keeps nuisance calls low through term maintenance |
| Hotel bedroom ceiling | WL-PH100 | Low standby current suits hundreds of heads on one zone |
Certification decides whether a shipment clears customs and whether an inspector accepts the installation. Wanlin Fire supplies real documentation for applicable models instead of a generic statement, and we recommend that every buyer verifies the certificate information for the exact model they intend to purchase.
| Information | Details |
|---|---|
| Product | CE Certified Photoelectric Smoke Detector OEM |
| Model Number | WL-PH100 |
| Standard | EN 54-7 and EN 14604 on applicable models, CE / RoHS / REACH on applicable models, FCC compliance support for wireless variants, UKCA option |
| Compliance Support | Documentation templates and technical file support where regional equipment rules apply |
| Test Reports | Chamber response, threshold and batch cycle reports available per model |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body per certificate |
| Target Market | North America / Latin America / EU / UK / Oceania / Middle East / Southeast Asia / South Asia / Africa |
| Certificate Status | Valid for applicable models |
| Certificate Document | View and download on request |
For importers, Wanlin Fire supports CE, RoHS and REACH documentation with per-model files, EN 54 series aligned construction papers where the device class applies, and FCC compliance support for wireless variants. UKCA options follow the British route on request. Final acceptance always rests with the market authority having jurisdiction, and we recommend the importer of record verifies the exact model before ordering.
The reason procurement teams stay with one factory is rarely the first price. It is that nothing surprises them after the third container.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | Assembly, functional test and packing contained in one building, so schedule changes are visible the same day | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | EN 54 series test reports referenced in writing before any deposit changes hands | Family level PDF files, customs risk | Brand level only, no model files |
| Customization | Private label housing, carton artwork, manual languages and part-number schemes from low MOQ | Limited to stock models | No customization, fixed SKUs |
| Price (factory direct) | Tiered factory pricing with 39% margin headroom typical for repeat partners | Low unit price, unstable sourcing | Brand markup of 2 to 4 times |
| Delivery reliability | Confirmed production slots, batch inspection photos, 25 to 40 day lead times | Unpredictable, no line access | Stock dependent, allocation risk |
| After-sales | Private label housing, carton artwork, manual languages and part-number schemes from low MOQ | No after-sales, high failure risk | Limited, ticket based support |
Our fire protection export programs suit fire equipment distributors, wholesalers, system integrators, MEP contractors, hotel group buyers, retail loss prevention teams, warehouse operators, tender coordinators, insurance risk surveyors and trading company sourcing managers across every region we ship to.
The process below is the one our partner accounts run every quarter, written as it actually happens. A standard OEM project then follows 8 steps:
Feedback from distributor and contractor accounts in three export regions.
A: A photoelectric chamber responds earlier to slow smouldering fires typical of soft furnishings, so it is the standard choice for sleeping areas and corridors. It is also less prone to cooking nuisance than an ionization chamber.
A: Applicable models are built and tested against EN 54-7, and the certificate number is provided on request per model before you order. We do not ask buyers to accept a certificate that belongs to a different device class.
A: Yes. The two-wire loop connects to most conventional panels within the 9-28 V window, and the Schottky diode base keeps supervision current flowing on older designs.
A: Dust, insects and humidity drifting inside the chamber are the common causes. The twin optical path plus compensated algorithm keeps drift inside the EN 54-7 response band across the maintenance interval.
A: Sample orders start at 10 pieces. Distributor stock orders start at 500 units and private label production with custom housing and packaging starts at 1,000 units, with 25-40 day lead times after confirmation.
What changed: By working directly with manufacturer Wanlin Fire, Manila Government Project Tender Coordinator Olivia Mitchell gained 39% margin headroom while keeping competitive installed pricing. With verified per-model documentation, honest specifications, EN 54-7 and EN 14604 on applicable models, private label branding and after-sales spare programs, Wanlin Fire became their long-term fire protection equipment supply partner in Philippines. We are a source factory actively recruiting local partners, and export trade companies are welcome to start with samples and grow into container programs.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com
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