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Quick answer: The TF-HT Heat Detector uses fixed temperature sensing certified to Class A1 (54 to 65°C), trips at a fixed point of 70°C, tolerates -10 to 55°C ambient, and weighs 105 g on a shared twist-lock base. Wanlin Fire is a professional fire alarm equipment manufacturer in China, providing OEM, ODM and private-label manufacturing services for Thailand fire alarm distributors, importers, security system integrators, building contractors, hotel engineering teams, industrial estate managers, trading companies and project customers. Key result: gross margins improved by 36% for Thailand importers and trading partners through factory-direct sourcing, TISI documentation support, per-model EN54 / CE / RoHS certificate files and private-label programs. Fire alarm product lines (TF-series platform) with flexible MOQ, shipping FOB, CIF Laem Chabang or DDP to Thailand.
Published by Wanlin Fire | Last updated: September 01, 2026 | Expertise: fire alarm OEM manufacturing for Thailand
Busaba Rattanaphan, a Government Project Contractor based in Chiang Rai, kept receiving fire alarm quotes that collapsed once documentation was requested. The tender calendar was closing fast, and every week of delay meant missing the submission window.
After two rounds of quotation and a video factory tour, Busaba Rattanaphan selected Wanlin Fire as their fire alarm OEM manufacturing partner. The deciding factor was one factory covering panels, detectors, call points and sounders.
The first container shipped on schedule, and reorders followed within the same quarter.
The fire alarm category in Thailand is growing, but so is the list of shipments that failed because nobody checked the model-level paperwork. A laundry room in a hotel in Chiang Rai ran above 39°C every afternoon, which pushed a smoke detector into weekly false alarms.
Field case: a kitchen supervisor in Chiang Rai admitted during an insurance review that the smoke detector above the fryer had been taped over for 4 months; a fixed-temperature heat detector restored real coverage without the nuisance trips.
Why it matters for Thailand buyers:
Wanlin Fire provides flexible OEM and ODM services for customers who want to build or expand their own fire alarm product lines for the Thai market. Our customization capabilities include:
Whether you need an existing TF-series device under your own brand or a customized fire alarm line developed for the Thai market, our team can work with you from model selection through mass production.
Wanlin Fire designs each device around three rules: honest specifications, testable certificates, installable hardware.
Core Features:
| Parameter | Wanlin Fire Specification |
|---|---|
| Sensing method | Rate-of-rise plus fixed temperature |
| Response class | Class B (69 to 85°C) |
| Operating voltage | DC 9 to 30V conventional circuit |
| Standby current | Below 50 uA at 24V DC |
| Alarm temperature | 70°C fixed |
| Indicator | Red latching alarm LED |
| Base | Shared twist-lock base with TF-SM smoke detector |
| Device dimensions | 102 x 50 mm |
| Weight | 115 g |
| Operating temperature | -20 to 60°C |
| Humidity | Up to 95% RH non-condensing |
| Compliance | EN54-5 / ISO 7240-5 architecture on applicable models, TISI documentation support |
| Warranty | 18 months |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Commercial kitchen | TF-HT | Ignores wok steam and smoke that trigger smoke detectors |
| Boiler and plant room | TF-HT | Fixed-temperature alarm beside hot equipment |
| Parking garage | TF-HT | Stable detection where exhaust fumes confuse optics |
| Laundry and drying room | TF-HT | Tolerates sustained heat without nuisance trips |
Certification is one of the most important considerations when sourcing fire alarm equipment for Thailand. Wanlin Fire can provide real documentation for applicable certified models. Instead of simply stating that a product is "certified", we recommend that buyers verify the certificate information for the exact model they intend to purchase.
| Information | Details |
|---|---|
| Product | Fire Alarm Device (TF-series Platform) |
| Model Number | TF-HT |
| Standard | EN54 series / CE / RoHS on applicable models, TISI documentation support |
| Certificate Number | Provided on request per model |
| Certificate Holder | Wanlin Fire or applicable certification holder |
| Certification Body | Notified body per certificate |
| Target Market | Thailand / ASEAN / OTHER |
| Certificate Status | Valid for applicable models |
| Certificate Document | View / download on request |
For customers targeting the Thai market, Wanlin Fire supports TISI documentation questions with per-model files, and for projects where EN54 series references, CE, RoHS or ISO 9001 manufacturing scope apply, the relevant documentation can be requested for any represented model before ordering. Final acceptance always rests with the Thai authority having jurisdiction for each building class.
Buyers comparing fire alarm factories usually check four things: spec accuracy, certificate files, customization speed and delivery honesty.
| Factor | Wanlin Fire | Typical Alibaba Supplier | Branded Equipment Distributor |
|---|---|---|---|
| Manufacturing depth | China-based factory, in-house molding, SMT lines and per-unit function testing | Trading company, outsourced assembly | Brand owner, limited custom work |
| OEM / ODM flexibility | Private label from low MOQ, Thai labels and manuals supported | Limited to stock models, higher MOQ | No customization, fixed SKUs |
| Certification transparency | Real certificate documents for applicable models (EN54 / CE / RoHS), TISI documentation support | Incomplete or missing, customs risk | Brand-level only, no project docs |
| Price (factory direct) | Competitive factory pricing with tiered discounts | Low price but quality risk | Brand markup of 2-4x |
| After-sales | Dedicated account manager, technical support, spare devices | No after-sales, high failure risk | Limited, ticket-based support |
Wanlin Fire's fire alarm OEM services are suitable for: fire alarm system distributors, fire safety equipment importers, security systems integrators, building management contractors, fire protection engineering firms, hotel engineering purchasers, industrial estate facility managers, condominium management buyers, construction company procurement officers, MEP consulting engineers, trading companies and safety equipment e-commerce sellers.
To receive an accurate quotation, please share your target project, device models, estimated quantity, packaging needs and certification requirements. A standard OEM project then follows 8 steps:
Buyers who moved to factory-direct fire alarm sourcing report the same pattern: better margins, fewer customs surprises and faster reorder cycles.
A: Thai kitchens, boiler rooms, laundries and covered parking all produce steam, dust or exhaust that causes smoke detector nuisance alarms. The TF-HT ignores those conditions and still responds to real heat events.
A: It alarms when temperature climbs faster than about 8°C per minute, catching fast flaming fires even before the fixed limit is reached, which suits timber and storage areas.
A: Yes, both use the same twist-lock base, so a room can be re-classed from smoke to heat protection without rewiring.
A: Class A1 covers most interior rooms, while Class B suits hot roof spaces and plant rooms where normal ambient temperature runs higher.
A: Yes. TISI documentation support, EN54-5 architecture test references, HS code suggestions and Thai or English manuals are provided per order.
Key result: By working directly with manufacturer Wanlin Fire, Chiang Rai Government Project Contractor Busaba Rattanaphan achieved 36% higher margins while offering competitive pricing. With verified documentation support, honest specifications, Thai-market labeling and private-label programs, Wanlin Fire has become their trusted fire alarm OEM and ODM manufacturing partner.
For more information: www.wanlinfire.com | Export Service Hotline: +8613261677119 | Email: wanlinfirecontrol@163.com