Infrared IR PIR Motion Sensor Detector Module
HC-SR501IR PIR Motion Sensor Detector Module is popular for sensing motion using infrared technology with automatic detection. It includes a pyroelectric infrared sensor. It has a detection range below 120° and detection distance adjustable between 3 to 7 meters. It also has a wide operating voltage range of DC4.5V-20V.
1. Automatic induction: When someone enters its induction range, enter the high level, people leave the sensor range is automatically delayed off high. Output low.2. photosensitive control (optional): the module reserved for location, can be set to photosensitive control, strong light during the day or not induction. Photosensitive control is optional, the factory did not install the photosensitive resistor. If necessary, please buy a separate photosensitive resistor to install. 3. Two trigger modes: L is not repeatable, H is repeatable. Can be jumper selected, the default is H. A. non-repeatable trigger mode: the induction output high, the delay time is over, the output will automatically change from high to low.
1 Channel 5V Relay Module