Description:  Highly reliable and easy to set up, the water sensor effectively detects for water with proprietary sensing technology, and sends alerts to the system for appropriate action. Ideal placements for it include kitchen, bathroom, basement, mechanical room, warehouse and more.  Features:  Working RF frequency: 433MHz.  Wireless transmitting distance: no more than 100m (in open area).  Working voltage: DC 1.5V / AA battery.  Standby current: no more than 20uA.  Alarm current: no more than 50mA.  Operating temperature: -10℃ to 55℃.  Humidity: no more than 80 percent ( non-condensing ).  Specification:  Material: Plastic  Color: White Product weight: 0.0530 kg  Package weight: 0.0870 kg  Package size (L x W x H): 5.30 x 6.20 x 9.30 cm / 2.09 x 2.44 x 3.66 inches Package includeds:  1 x Wireless Water Sensor.  1 x Adhesive.  1 x English User Manual