Bottom line: 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. The outcome: roughly 36% additional margin after the private label change through factory direct sourcing, per-model documentation, After 17 days of bench testing against the fire response expectations of Australia, David Novak asked for the production slot rather than another quote., 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

David Novak, a Retail Chain Loss Prevention Manager in Sydney, opened the sourcing file with three fixed points: real certification documents, stable lead times and one engineering contact who answers the phone.
The renewal cycle for systems installed fifteen years ago hit Australia at once, leaving contractors in Sydney short of replacement heads on compatible footprints.
The decision came down to four things: documents that match the model, production slots that hold, spare parts that ship later and one person who answers technical mail. David Novak signed off the first Combustible Gas Detector for Hotel Kitchen order covering 24 sites in Australia, and the specification sheet was rebuilt around the reference standards rather than around a brand name.
After 17 days of bench testing against the fire response expectations of Australia, David Novak asked for the production slot rather than another quote. In a typical Sydney warehouse the value stack sits in one aisle: a detector head, a sounder base, a call point cover and the accessories nobody stocks until failures start.
The failure pattern behind this product line repeats in every market we ship to, and it rarely starts with the device being wrong.
A hotel kitchen in Sydney had a detector head that had been poisoned by silicone cleaner, and the maintenance team had no idea it was blind.
Field case: The Sydney kitchen moved to infrared sensing with a solenoid relay, and the following inspection passed with the shutoff test documented.
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.
The construction decisions here came from maintenance feedback rather than from a marketing brief. 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 | Natural gas plus carbon monoxide dual version |
| Sensor type | Infrared NDIR version for poisoning resistance |
| Range | 0 to 100 percent LEL with 25 percent alarm thresholds |
| Response time | Under 30 seconds to 90 percent response typical |
| Output | Relay plus 4-20 mA |
| 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 | 18-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 for Hotel Kitchen |
| 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.
Seven questions decide most sourcing decisions in this category, and only one of them is about unit cost.
| Factor | Wanlin Fire | Typical Trading Supplier | Brand Name Distributor |
|---|---|---|---|
| Manufacturing depth | Sample units built on the same line as production units, not hand assembled in a separate room | Trading office, outsourced production | Brand owner, no project work |
| Document transparency | UKCA route supported per applicable model where the customer requests the British market paperwork | Family level PDF files, customs risk | Brand level only, no model files |
| Customization | Regional partner structures for distributors that hold stock and local service in their own market | 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 | Regional partner structures for distributors that hold stock and local service in their own market | 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.
Working with a direct factory changes the order sequence in useful ways: the documents come before the money. 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.
The outcome: By working directly with manufacturer Wanlin Fire, Sydney Retail Chain Loss Prevention Manager David Novak 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 Australia. 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