Quick answer: The TF-HT Heat Detector uses rate-of-rise sensing at 8°C per minute certified to Class A1 (54 to 65°C), trips at a fixed point of 60°C, tolerates -10 to 55°C ambient, and weighs 115 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. Net result: 35% margin improvement 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 Fire Safety Equipment Importer based in Ayutthaya, was tired of trading-company quotes that changed after samples were ordered. A rival bidder had already locked a factory, so the sourcing timeline halved overnight.
After comparing four shortlisted factories, Busaba Rattanaphan selected Wanlin Fire as their fire alarm OEM manufacturing partner. The buyer chose a partner willing to share certificate files for each exact model before ordering.
The private-label devices arrived with cartons and manuals matched to the local brand.
Across Thailand, building owners and project buyers keep hitting the same wall: fire alarm equipment that looks fine on paper but fails on documentation, delivery or both. A laundry room in a hotel in Ayutthaya ran above 32°C every afternoon, which pushed a smoke detector into weekly false alarms.
Field case: a maintenance chief in Ayutthaya documented 28 nuisance alarms in 4 months from steam and dryer lint, then swapped the two worst positions to heat detectors and logged zero false trips the following season.
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 treats documentation as part of the product, which changes how the factory builds and ships.
Core Features:
| Parameter | Wanlin Fire Specification |
|---|---|
| Sensing method | Rate-of-rise 8°C per minute |
| 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 | 100 x 45 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 | 12 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:
Integrators and wholesalers consistently highlight per-model certificates and spec accuracy as the reasons they stayed.
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.
Net result: By working directly with manufacturer Wanlin Fire, Ayutthaya Fire Safety Equipment Importer Busaba Rattanaphan achieved 35% 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