Description: WiFi direct connection design can be used independently without a gateway. It can perceive the movement of the human body through the infrared signal of the human body and quickly push it to the mobile application. It has anti-dismantling alarm. PIR sensor support intelligent scene control and linkage scene setting. It is powered by rechargeable battery, and can be used for a long time on a single charge. The product has 120 degree wide-angle infrared detection, and the detection distance is 7 meters. It is made of high quality plastic and metal, which is fine workmanship. The length of this product is 5.9cm, the width is 5.9cm and the height is 2.7cm. PIR sensor is suitable for home, kitchen, bathroom and other positions where human motion need to be detected. Item Name: Water Leakage Sensor Material:Plastic,Metal Batteries: Rechargeable Battery (Included) Size:5.9cmx5.9cmx2.7cm/2.32inx2.32inx1.06in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Double Side Tape 1 X User Manual 1 X Charging Cable 1 X PIR Sensor