Apollo 55000-137APO Series 65 CS Heat Detector 90c, The Series 65 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 65 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
• · Wide voltage range (9V to 33V DC)
• · 3 year warranty