The motion and presence sensor, unlike most PIR sensors, can detect even small movements of the human body, such as changing the position of a sitting person or even hand movements of a person working at a computer. It has a day and night identification function, which allows the user to set the operation of the sensor depending on the intensity of light. It also has a light maintenance function in the range of 10 sec. up to 30 minutes. The LUX function allows for identification of day and night, and the adjustment in the - CGC Lighting Surface Mount PIR Motion Sensor IP20 White Ceiling or Wall Mount