1、WiFi connection, it can be directly connected via WiFi, and can be used alone without a gateway. 2、0.5mm immersion detection, it can test a wide range, and can be pushed to the mobile application at the fastest speed. 3、No need to install, you just need to put it in a leak‑prone place, and the product is waterproof. 4、Support intelligent scene control, it can carry out linkage scene setting, help you build a smart and convenient life. 5、Powered by a 450mAh lithium battery, it supports charging and can help you last for a long time. 1 x Host1 x Charging Cable1 x Reset Needle1 x Chinese and English Manual Item Type: Leakage SensorWeight: Approx. 73g / 2.6ozProduct Size: Approx. 7x7cm / 2.8x 2.8inMaterial: ABSBattery Capacity: 3.7V 450mAh Lithium Battery (Battery Included)Working Temperature: -20°C~85°CCharging Interface: DC 5V 1A (Micro USB)Connection Method: For ZigBee