The fire heat detector SPT-3B (fixed temperature/rate-of-rise with the indication of standby mode and with the remote resetting to the point of departure) is designed for the forming and the transmission of “Fire” signal by the 2-wire alarm loop to a control panel. The detector (fixed temperature) switches over to “Fire” mode when reaches the threshold value of ambient temperature. Or (rate-of-rise) at the high velocity of the ambient temperature growth even if the initial temperature is much lower than normal temperature of the detector’s use.

The indication of standby mode and “Fire” status is provided.

Performances of the detector are produced for the connection to the 4-wire alarm loop; their output signal is formed by switching relay contacts.

The Base B100M (Module M-1) is produced for the control of power voltage of the 4-wire alarm loop and the installation of a terminal resistor that is mounted at the end of the alarm loop.