1、Professional Waterproof: Water leakage detector uses a safe waterproof panel, so the sensor can work properly even when touched by wet hands or splashed with water, or even covered with water 2、Reliable and Safe: When Water leakage sensor detects a leakage, the valve will automatically close. which brings you a reliable and safe experience 3、Large Power: Wireless water leakage sensor has a large capacity power more durable, fully charged and durable, easy to replace the battery 4、4GHz Wireless: Water sensor alarm with 4GHz wireless frequency, ≤ 15dBm transmit power, ≤ 25mA operating current, more than 50m (open) communication distance 5、ABS Material: The water level sensor is made of ABS material, which is wearable and durable, and can be used with confidence 1 x Water Leakage Sensor1 x User Manual Item Type: Water Leakage SensorMaterial: ABSBattery:1 x CR2032 Coin Cell 150mAh (included)Wireless Frequency: 2.4GHzTransmit Power: ≤15dBmOperating Current: ≤25mAOperating Temperature: -10℃-+55℃Communication Distance: More Than 50meters/ 54.7yd (open)Weight: Approx. 36g/ 1.3oz