Features 1、AC / DC12V power supply, common voltage, convenient and practical. 2、Automatic trigger, set the highest and lowest water level at will. 3、Widely used, can be matched with automatic control of solenoid valve pump motor. 4、With stable function and excellent quality. 5、Maximum Load: 30A / 250VAC, 30A / 120VAC, 30A / 30VDC. Specification Item Type: Water Level Automatic Controller Standby current 11MA Working current 82MA Size: Approx. 67 x 33 x 25mm / 2.6 x 1.3 x 1in Weight: 43 g / 1.5 oz(approx.) Maximum Load: 30A / 250VAC, 30A / 120VAC, 30A / 30VDC Application: Domestic water tower Aquarium fish tank water change system Automatic control of conductive liquid Livestock automatic feeding system Farm automatic water supply system And other places requiring automatic water supply and water exchange. Package List 1 x Water Level Automatic Controller