3X 12-24V Non- Tank Liquid Water Level Detect Sensor Switch Container DC 5V This Liquid Water Level Sensor can be used to detect the liquid levle in tank/container. Non-contact, works without direct contact with the liquid inside the tank. Tiny in size, easy to install. Size:30 x 19 x 10mm/1.18inch x 0.75inch x 0.39inchWorking voltage:DC5V or 12-24VMaximum output:30mAResponce time:0.5 SecWorking environment:0Degrees Celsius to 60Degrees Celsius.Sense distance:10mmApplication:Household appliances products, sanitary wares intelligent control products, drinking cleaning water and water treatment equipments, treatment and foodstuff mechanism equipments, chemical mechanism equipments and so on. Connection and Diagram:Black:GNDWhite:OutputRed:VCCmaterial:plasticcolour:blackPackage included:3 x Non-contact Tank Liquid Water Level Sensor Switch3 x Bracket(just for flat surface)Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.