The Orbis IS Heat Detector monitors temperature by using a single thermistor network which provides a voltage output proportional to the external air temperature. The Orbis IS range incorporates seven heat detector classes to suit a wide range of operating conditions.

The Apollo ORB-HT-51148-APO Orbis I.S. A2S Heat Detector with Flashing LED (ORB-HT-51148-APO) monitors temperature by using a single thermistor network which provides a voltage output proportional to the external air temperature.

The Apollo ORB-HT-51148-APO Orbis I.S. A2S Heat Detector is used where sudden increase in heat likely normal operation but not possible likely to be at or below freezing point in normal operation.

Key Features

• 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

Technical Specifications