Product Name : Water Level Sensor;Max Contact Rating: 10W;Max Switch Voltage : 100V DCMax Switch Current : 05A;Max Breakdown Voltage : 220V DC;Max Carry Current : 10A;Max Contact : 100m OhmTemperature Rating : -10 ~ +85 Degree;Float Ball Material : Metal;Float Body Material : Stainless Steel;Float Ball Size : 26 x 26mm / 1" x 1" (D*H)Screw Thread Diameter : 98mm/ 3/8";Retaining Diameter : 145mm / 06";Body ,Length : 265mm/ 104";Cable Length : 35cm / 138"A float switch is a device used to sense the level of liquid within a tank.The switch may actuate a pump, an indicator, an alarm, or other device.Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for head control, pet bowls, fish tanks, filtration, heating, pumps, ponds, basement alarms, boats, condition drain pans, pressure washers, carpet cleaning mach, reef aquarium, fluid control, ice machines, coffee pots, marine, automotive, automobiles, tropical fish tanks, evaporator coils, condensation line, in relays, or what ever your project may be.Net Weight : 93gColor : Black, Red, Silver TonePackage Content : 1 x Water Level SensorNote:Light 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.