Check the listing for details. Keyestudio EASY-plug PIR Motion Sensor Module KS-122. Condition: Brand New. Listed at 4.50 USD. Introduction PIR stands for Pyroelectric Infrared (many times, they are also referred as Passive Infrared sensors). This is because their principle of operation is based on the detection of infrared energy emitted by a moving body. The PIR sensor can detect infrared signals from a moving person or moving animal, outputting switching signals. One important thing to mention is that when motion is detected, the output will stay high for 2.3 to 3 seconds after the motion stops. Regarding the power supply, it can work with voltages of both 3.3V and 5V. The device has a detection range of 7 meters and a detection angle of 100. This module should be used together with EASY plug control board. Special Note: The sensor/module is equipped with the RJ11 6P6C interface, compatible with our keyestudio EASY plug Control Board with RJ11 6P6C interface. If you have the control board of other brands, it is also equipped with the RJ11 6P6C interface but has different internal line sequence, cant be used compatibly with our sensor/module. Specification Connector: Easy plug Input Voltage: 3.3 ~ 5V, Maximum 6V Working Current: 15uA Working Temperature: -20 ~ 85 Output Voltage: High 3V, Low 0V Output Delay Time (High Level): about 2.3 to 3 Seconds Detection angle: 100 Detection distance: 7 meters Output Indicator LED (When output HIGH, it will be ON) Pin limit current: 100mA