Apollo Fire Detectors Detector Heat A1R Rate Of Rise Series 65

55000-122APO is a heat detector that monitors temperature by using a dual thermistor network which provides a voltage output proportional to the external air temperature. · · · Can be used for applications where smoke detectors are unsuitable · · Ideal for environments that are dirty or smoky under natural conditions · · Wide-operating voltage of 933 V DC · · Flashing LED and magnet operated test switch option · · Wide-operating and storage temperature of -20C to +60C · · Electrically and mechanically compatible with Series 60