The functions cannot be switched off separately. HC-SR501 Motion Sensor usually known as the PIR sensor is used in many kinds of Security Alarm Systems and Motion Detector systems.

PIR sensors are commonly used in security alarms and automatic lighting applications. They are most often used in PIR-based motion detectors. When you set the twilight switch to a certain LUX value (total light environment), it will only switch on at this value when motion is detected. A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. Weewooday 10 Pieces AM312 Mini Human Sensor Module IR Pyroelectric Infrared PIR Motion Sensor Detector Modules 2.7V to 12V, Working Temperature Minus 20. This motion sensor can therefore not be used separately. PIR sensors have been so well adopted as they are great at detecting human movement, which is the main motion detection we require for lighting and because they also offer simple adjustment methods to detect motion at different distances and angles. The motion sensor is always active, which means the twilight switch only works on the motion sensor. They react to a change in infrared heat radiation in. The activation time of the lamp can be adjusted with a minimum activation time of 10 ± 3 seconds and a maximum activation time of 30 ± 2 minutes. Passive infrared sensor For indoor usage Collaborates with LED lighting Regulation: lighting time (TIME) and the sensitivity of the light intensity (LUX). Passive or pyroelectric infrared (PIR) sensors are thermal detectors and suitable as motion sensors. With a detection distance of 20 meters under a detection range of 360°, this motion detector screens a wide range with which you can optimally set it as desired. The installation of this motion sensor is very easy due to the included installation package, this includes 2 screws with wall plugs. The PIR sensor is compatible with LED lamps up to a maximum of 1000W. The motion sensor is suitable for all types of lamp holders thanks to the connection via screw terminals at the rear. The sensor offers the possibility to vary the lighting time and the intensity of the ambient light thanks to the built-in twilight sensor. PIR sensors detect human presence by detecting the change in infrared radiation across the polarity of the sensor. The motion sensor is made of white plastic, and fits perfectly on your white ceiling. This PIR motion sensor is ideal for indoor and outdoor use due to its IP65 classification.

Pir sensor