Description:<br />  <br /><br /> Water Leakage Alarm Moisture Liquid Shortage Sensor Detector<br /><br />  <br /><br /> Specification:<br /> Material: plastic<br /><br /> Power Supply Voltage: 9V battary (include)<br /><br /> Alarm volume: about 110dB<br /><br /> Floater shape: I shape<br /><br /> Size: about 99x52x22mm<br /><br /> Size of the wire: about 1m<br /><br /> distance of the sensor action: about 7mm<br /><br /> Working temperature: -20 to 80 degree celsius<br /><br />  <br /><br /> Function:<br /><br /> When the water level rises and push the floater rises to the top of the switch, it begin to alarm.<br /><br /> When the water level decline and push the floater fall to the bottom of the switch, it begin to alarm.<br /> <br /> Detail pictures: