CD-IR-DT

This is a dual technology occupancy sensor with both passive infra-red (PIR) detection and noise (sound) detection. Lighting will be activated after movement is detected. The delay timer will then begin counting. If either noise or movement is thereafter detected, the timer will be reset and begin timing again. The PIR detector can detect movement up to 20 meters. The microphone can detect normal conversation up to about four meters distance. The lighting will be switched off if neither motion nor sound is detected during the timer period. Noise cannot activate the lighting – movement must be detected first to enable the microphone.