Photoelectric Smoke Sensor Heat Sensor, Black, NEMA 1 rated - 4098-9774
TrueAlarm Analogue Sensors & Bases
TrueAlarm Analogue sensors provide an analogue measurement digitally communicated to the host control unit using addressable communications. At the control unit, the data is analysed and an average value is determined and stored. An alarm or other abnormal condition is determined by comparing the sensor’s present value against its average value and time.