Motion Sensor, Peel & Stick, Local & Remote Alarm, Automatically Turns Lights on or off. No tools required for installation. With a sensor stand and sticker, you can paste it wherever you want. The stand can make 360° rotation. You can adjust the detection angle to your preference. Japanese infrared sensor is used to detect human motion through the moving heat source and the US Polyolefin Fresnel lens is used for high precision detection. The shell is made of anti-UV material and the colour will not fade allowing for long-term usage. The high quality flame-retardant material is used to improve safety.Dimensions: 30 × 30 × 33 mm Battery: CR2450