Item Type: Water Leakage Detector_x000D_ Material: ABS+silicone_x000D_ Wireless Technology: For ZigBee3.0_x000D_ Working Temperature: -10~+55_x000D_ Power Supply: A CR2032 button battery 150mah (Battery Included)_x000D_ Power Supply Life: More than one year (calculated 20 times per day)_x000D_ Product Size: Approx. 5 x 5 x 1.7 cm / 2 x 2 x 0.7 in_x000D_ Weight: Approx. 32g / 1.1oz 1[Waterproof] The safe waterproof panel can work normally even if it is touched with wet hands, the surfaces is splashed or even covered by water, to avoid moisture damage to the internal electronic components. 2[Send Alarm] When the sensor detects water, it can send an alarm to your phone and activate a local alarm to prevent water leakage and flooding. 3[Simple To Install] Ultra small design, no wiring or screws required, you can put it in any place where dripping and water leakage may occur. 4[Sensitive] Designed with a sensitive water leakage probe, the water level threshold is 0.5mm, which is safe and stable, so you can use it with confidence. 5[Widely Application] Smart water sensor is widely used in a variety of situations, such as kitchens, bathrooms, offices, hotels, etc.1 x Water Leakage Detector (Battery Included) 3 x Manual(English/German/Spanish)