Temperature inside the cable is two elastic steel wire, each wire outside the package with a layer of temperature and insulation of the material, in the normal monitoring of the state, the two wires are insulated, when the ambient temperature rises to the expected operating temperature, the temperature sensitive Material broken, two wire short circuit, the input module to check the short circuit after the alarm signal.

It can be used in power stations, substations, tunnels and other places, temperature and cable detectors stable and reliable, suitable for harsh environmental fire detection.

2. Classification

According to the working principle can be divided into: switch (that is, non-recoverable) and analog (that can be restored).

According to the work can be divided into: fixed temperature (that is, the external environment to a certain temperature will alarm) and the difference set temperature (that is, within a certain period of time, the external environment changes).