Detector, which is the eye of the alarm system, is an electric & mechanical processing components device that consists of sensor and signal processing, used to detect intrusion. Through transfer the physical signals into electric signals via sensor, then the detector analyzes and judges the collected electric signals to ensure whether it alarms or not.

Detectors include infrared detector, smoke detector, gas leaking detector, glass break detector, temperature detector, and magnetic switch detector.

It adopts temperature compensation to avoid interference, ensuring stable performance; taking use of advance components and perfect circuit design and fitting up advanced software avoid electromagnetic and RF interference; resolve white light interference via white light immunity technology.