The Thermal Detector FI750/T is based on the principle of heat detection. On the fire detection control panel, the detector can be parameterised as rate-of-rise detector with a maximum temperature of 58°C (Class A1R) or as maximum heat detector with an alarm temperature of 78°C (Class BS). The detector is designed for use on loops with Labor Strauss protocol.

The two multicoloured LED indicators with 360° visibility indicate the activated condition of the detector in red and the test condition in green. An output for the connection of a remote indicator is available. The integrated dual-isolator disconnects the loop at short circuit on the loop line.

By means of the Programming Unit FI750/PU, the address of the detector can be set in the range 1 to 240. In addition, the programming unit allows for the reading-out of parameters, such as the default analogue value or the production date. Furthermore, in case of connection to a compatible fire detection control panel, the detector can also be AUTO-addressed.

The detector is accommodated in a white housing. If the detector operates as rate-of-rise detector (Class A1R), it can be used in rooms with a maximum height of 7.5m. If the detector is used as maximum heat detector according to Class BS, a maximum room height of 6m is permissible.