Description:Working Voltage: 5～24VDCMax. Working Voltage: 30VMax. Working Current: 0.7AMax. Working Power: 1.1WSwitch Type: Water or liquid touches the two copper contacts simultaneously to form loop circuit, and then send out the warning signalConnection mode: the red line contacts ”positive pole”; the white line contacts ”negative pole”Housing Material: ABSContacts Material: CopperSize (L x W x H): Approx. 2.5inch x 0.63inch x 0.5inch/ 6.4cm x 1.6cm x 1.3cmNote: this detector system could not give an alarm sound, and just to send out the warning signalPackage Includes:1 x Water leak detector2 x Screws