Thermal detector consists of a thermistor. Suitable for use in environments having high base temperature (above 35°C) with alarm temperature set at 78°C. Ready for testing by remote control laser. Alarm LED. Output for alarm repeater. Possibility for addressing through additional module. CPD Certificate in accordance with EN 54-5. 8-30VDC power. Operating temperature -20°C to +60°C. Relative humidity up to 95% non-condensing.