The Anwetech AT-H203 Heat Detector is a high-performance temperature fire sensor designed for automatic fire alarm systems.
Equipped with an intelligent fire analysis algorithm and high-accuracy thermal sensing element, it ensures fast and reliable response to rising temperatures while minimizing false alarms.
The AT-H203 uses non-polar two-wire wiring, supports quick twist-lock installation, and offers clear LED status indication for inspection and alarm status.
It is suitable for areas where smoke may not be the primary fire indicator, such as garages, mechanical rooms, corridors, and public facilities.
Anwetech is a professional China fire alarm system manufacturer & China supplier, offering full fire detection product lines including heat detectors, smoke detectors, manual call points, alarm sounders, and control panels.
Intelligent heat fire detection with built-in CPU
Fast thermal response and high accuracy
False alarm reduction algorithm
LED blinking in monitoring mode, steady in alarm
Non-polar two-wire system, plug-in installation
Ideal for garages, equipment rooms, and industrial spaces
Commercial buildings
Underground garages & parking areas
Mechanical & equipment rooms
Industrial facilities
Corridors & public areas
Warehouses & storage rooms
| Item | Specification |
|---|---|
| Model | AT-H203 |
| Type | Heat fire detector |
| Operating Voltage | DC 20–28V |
| Standby Current | <100µA |
| Alarm Current | ≤24mA |
| Operating Environment | −10°C ~ +55°C, ≤95%RH |
| Dimensions | Ø96 × 38mm (without base) / Ø96 × 49mm (with base) |
| Wiring | Non-polar, two-wire |
| Cable | RVS ≥1.0mm² |
| Installation | Ceiling mount; ≤45° tilt |
