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Quick answer: The WL-GD1200 monitors 0 to 100 percent LEL with catalytic bead or infrared sensing and a relay contact for solenoid valve shutoff. Wanlin Fire is a fire protection equipment manufacturer in China supplying combustible gas 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. Net result: 36% more headroom against the brand reseller price in Indonesia through factory direct sourcing, per-model documentation, A 16 day trial across 23 sites settled the specification question faster than every email exchange before it., 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
Marco Rossi, an OEM Private Label Program Manager operating across Jakarta, needed one supplier to cover detectors, sounders and panels in a single container rather than juggling four vendors and four freight bills.
Container freight swings over the last two seasons made mixed loads attractive, so buyers in Jakarta consolidated detectors, sounders and panels into one shipment.
What moved Marco Rossi was a video walk-through of the production line at the second factory, booked at the request of the Jakarta office. Marco Rossi signed off the first Combustible Gas Detector order covering 23 sites in Indonesia, and the specification sheet was rebuilt around the reference standards rather than around a brand name.
A 16 day trial across 23 sites settled the specification question faster than every email exchange before it. Picture the ordinary Monday in Jakarta: an installer opens a carton, finds a manual in one language and no declaration in the model number used on site.
The expensive part of a failed detection scheme is never the hardware invoice. It is the repeat visit and the re-inspection fee.
A basement car park in Indonesia stored LPG fuelled fleet vehicles with no LEL monitoring and no solenoid shutoff on the line.
Field case: The car park in Indonesia installed LEL monitoring with valve closure and met its insurer condition within 16 days.
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.
This range was built so a distributor can stock one family and cover several application profiles without carrying dead inventory. The WL-GD1200 monitors 0 to 100 percent LEL with catalytic bead or infrared sensing and a relay contact for solenoid valve shutoff.
| Parameter | Wanlin Fire Specification |
|---|---|
| Target gases | Methane and LPG for kitchen and basement |
| Sensor type | Catalytic bead for LEL monitoring |
| Range | 0 to 100 percent LEL with 25 percent alarm thresholds |
| Response time | Under 30 seconds to 90 percent response typical |
| Output | RS485 Modbus with digital display |
| Power | DC 24 V with relay contacts for valve shutoff |
| Ingress rating | IP66 head for plant rooms and kitchens |
| Standard alignment | EN 50194 support on applicable models, CE and RoHS documentation |
| Calibration interval | Six to twelve months depending on duty |
| Warranty | 24-month |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Hotel kitchen gas bank | WL-GD1200 | Relay output closes the solenoid before gas accumulates |
| Basement car park | WL-GD1200 | LEL monitoring for LPG fuelled vehicle fleets |
| Restaurant LPG cylinder store | WL-GD1200 | NDIR version resists silicone poisoning from cleaners |
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 | Combustible Gas Detector |
| Model Number | WL-GD1200 |
| Standard | EN 50194 and EN 60079-29-1 support 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 | Production records kept per batch, with batch inspection photos before container loading | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | RoHS and REACH documentation available for applicable construction variants | Family level PDF files, customs risk | Brand level only, no model files |
| Customization | Mixed containers combining detectors, sounders, panels and instruments under one bill of lading | Limited to stock models | No customization, fixed SKUs |
| Price (factory direct) | Tiered factory pricing with 36% 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 | Mixed containers combining detectors, sounders, panels and instruments under one bill of lading | 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.
A first cooperation follows eight steps, and none of them require you to trust a brochure. A standard OEM project then follows 8 steps:
Comments collected after the first full year of each partnership.
A: Catalytic sensors cost less and suit ordinary kitchen duties. Infrared units resist poisoning from silicone and are specified where cleaning agents or solvents are routinely present.
A: Yes. A relay contact drives the solenoid shutoff valve, which is the standard expectation in commercial kitchen protection schemes. Confirm the required fail-safe state locally.
A: Six to twelve months depending on duty and insurer requirement. A bump test before each calibration keeps the record clean for the annual audit.
A: Standard versions cover methane and LPG, and dual versions add carbon monoxide detection in the same head with separate alarm relays for each channel.
A: Samples start at 5 units. Distributor orders start at 100 pieces and OEM labelling plus custom calibration documentation starts at 300 units.
Net result: By working directly with manufacturer Wanlin Fire, Jakartan OEM Private Label Program Manager Marco Rossi gained 36% margin headroom while keeping competitive installed pricing. With verified per-model documentation, honest specifications, EN 50194 and EN 60079-29-1 support on applicable models, private label branding and after-sales spare programs, Wanlin Fire became their long-term fire protection equipment supply partner in Indonesia. 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