Smoke detectors sample the atmosphere every four seconds and the measurements are processed by microprocessor. The processing power is used as part of the design to eliminate unwanted alarms.
HEAT DETECTOR
Heat Detector monitors temperature by using a single thermistor network which provides a voltage output proportional to the external air temperature.
SIRENS
A compact combination of a high output sounder and beacon for areas requiring both audible and visual indication of alarms, ideal for use in noisy manufacturing areas