Check the listing for details. Water Level Automatic Controller Liquid Module AC 9V-12V DC 12V-15V 10A 30A Pump. Condition: New. Listed at 12.99 USD. Description: 1 Working voltage: DC 12-15V (AC 9-12V)2 Amps: 10A/30A3 Size: 54mm x 27mm x 19mm4 Weight: 23.5 g5 Maximum load: 10A/30A ~ 250VAC, 10A/30A ~ 125VAC, 10A/30A ~ 30VDC, 10A/30A ~ 28VDC, 10A/30A ~ 12VDC Note: Package does not contain probe (wire). No need to use a dedicated probe, the probe can be made using household wires. For safety, use an AC/DC power supply with good isolation. Application:Home water tower automatic water supply system.Aquarium Fish tank Water Changer System.Conductive liquid automatic control.Automatic feeding system for poultry and livestock.Farm automatic water supply system.And other occasions that require automatic water supply and water exchange.Solenoid valve water pump motor automatic control. Package Includes: Water Level Automatic Controller Liquid Module AC 9V-12V DC 12V-15V