The Series 27 Heat Detector monitors temperature by using a dual thermistor network which provides a voltage output proportional to the external air temperature. There are 12 heat detectors in the Series 27 range designed to suit a wide variety of operating conditions.
-Can be used for applications where smoke detectors are unsuitable
-Ideal for environments that are dirty or smoky under natural conditions
-Wide operating voltage
-Flashing LED and magnet operated test switch option