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Bottom line: The TF-DCT Duct Smoke Detector uses a photoelectric head with twist base with sampling tubes spanning 0.5 to 4.0 m ducts, switching 2 SPDT with remote LED for fan and damper control, rated 0 to 60°C at 800 g. 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
Kanya Chaiyaporn, a MEP Consulting Engineer based in Phuket, was tired of trading-company quotes that changed after samples were ordered. Previous shipments had arrived with labels that did not match Thai import requirements.
Once the OEM documentation samples were approved, Kanya Chaiyaporn selected Wanlin Fire as their fire alarm OEM manufacturing partner. What settled it was per-model EN54 test references and honest delivery commitments.
The first container shipped on schedule, and reorders followed within the same quarter.
In the Thai project market, the gap between quoted specifications and delivered hardware is wider than most first-time importers expect. A hotel in Phuket kept its lobby comfortable all day, and an auditor found that the supply fans had no smoke interlock at all, only a manual stop button in the plant room.
Field case: an engineer in Phuket watched smoke spread across two floors during a simulation because the AHU kept running; duct detectors with fan-shutdown relays turned the same scenario into a contained single-zone event.
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 |
|---|---|
| Detector head | Addressable head option |
| Sampling method | Inlet and exhaust sampling tubes across the duct face |
| Duct width range | 0.3 to 3.0 m duct widths |
| Air velocity range | 0.5 to 20 m/s airflow |
| Relay outputs | 2 SPDT alarm and trouble relays |
| Auxiliary contacts | Fan shutdown and damper control on alarm |
| Voltage | DC 18 to 30V or AC 24V |
| Housing | Steel housing, IP54 |
| Device dimensions | 280 x 160 x 95 mm |
| Weight | 800 g |
| Operating temperature | -10 to 60°C |
| Compliance | EN54-7 detector head architecture on applicable models, TISI documentation support |
| Warranty | 12 months |
| Scenario | Recommended model | Key benefits |
|---|---|---|
| Shopping mall AHU room | TF-DCT | Smoke in the return duct triggers AHU shutdown |
| Hotel air handling system | TF-DCT | Stops smoke recirculation to guest floors |
| Factory ventilation duct | TF-DCT | Relay interface kills supply fans on alarm |
| Office VAV network | TF-DCT | Sampling across main riser ducts |
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-DCT |
| 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.
The difference between a source factory and a trading company shows up in testing depth, documentation and reorder consistency.
| 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.
For a faster quote, include the destination market, device list, volumes, label and logo requirements, and the certification standards your project needs. A standard OEM project then follows 8 steps:
Across the Thai project market, partners who switched to a source factory saw documentation and delivery problems drop sharply.
A: Building supply fans can recirculate smoke from one small fire to every floor. The TF-DCT samples the airstream and shuts fans and dampers before smoke spreads.
A: Sampling tubes suit 0.3 m to 3 m duct widths, with extended tubes to 4 m, across 0.5 to 20 m/s airflow.
A: No. It protects the air path; room detectors remain for occupant warning, and Thai codes generally require both.
A: The photoelectric head twists out for cleaning or swap without duct entry, and the trouble relay reports a missing head.
A: An addressable head option is available for TF-200 systems, or relay versions wire to conventional zones.
Net result: By working directly with manufacturer Wanlin Fire, Phuket MEP Consulting Engineer Kanya Chaiyaporn 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