ITEM NAME:110V Liquid Water Level Sensor Horizontal Float Switch fr Fish Tank Pump Alar!E Features:100% Brand new and high quality.Brand new and high quality. Can be used to sense the level of liquid in a tank. Can activate a pump, an indicator, an alarm or other device. Use it with hydroponics, saltwater tank, freshwater tank, gardening,aquariums for power head control, pet bowls, fish tanks, filtration,heating, or what ever your project may be Contains no mercury Contract rating(Max):10W Switching voltage(Max):110VDC Switching current(Max):0.5A Temperature rating:-10~+60 °C.Switching current(Max):0.5A.