Home 2-Wire Rate-of-Rise and Fixed Temperature Heat Detector

2-Wire Rate-of-Rise and Fixed Temperature Heat Detector

The HM-203HC-2 network 2-wire rate-of-rise and fixed temperature heat detector is outfitted with the precise and reliable thermal sensor which has double temperature sensing modes of rate-of-rise temperature and fixed temperature. It can be applied into all kinds of places needing fire prevention.


When the environmental temperature climbs to the alarm threshold of 57℃ (135°F), or the rate of rise of temperature comes up to 8℃ (15°F) per minute, the product would be triggered to alarm, and send the alarm signal (current signal) to the alarm controller (fire alarm control panel system).


In the alarm state, the LED indicator of the 2-wire rate-of-rise and fixed temperature heat detector lights. After the completion of the alarm, the user should disconnect the power and reset the product. The adoption of no polarity power input saves the installation time. With the supply voltage of DC9-35V, the product is furnished with double alarm indicators visible within 360 degrees without blind angle.

2-Wire Rate-of-Rise and Fixed Temperature Heat Detector

Technical Specification
Operating Voltage DC9~35V
Quiescent Current 50uA (DC 24V)
Alarm Current 35mA (DC 12V), 83mA (DC 24V)
Alarm Indication Red LED
Alarm Temperature 57℃ (135°F)
Rate of Rise of Alarm Temperature 15°F (8℃) /min
Alarm Output Remote LED
Working Temperature -10℃ ~ 50℃
Ambient Humidity ≤95% RH
Detection Zone 60-80m²

Related Names
Thermal Heat Detector | High Room Temperature Sensor | Commercial Fire Alarm


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