Features: 1.USED FOR AQUARIUM: Used in water tower automatic water supply system, aquarium fish tank water supply system 2.WIDE APPLICATION: Suitable for use in conductive fluid, automatic control of domestic livestock, automatic water supply system in farm, etc. 3.APPLICABLE MACHINE: Used in the need of water supply occasion automatic water and water exchange, such as solenoid valve, water pump, automatic motor control 4.TECHNICAL PARAMETERS: Working voltage from DC 12-15V(AC 9-12V), standby current for 10MA, current is 40MA 5.RELIABLE PCB: Using excellent PCB materials, with reliability and miniaturization, good maintenance and interchangeability specification:Item Type: Water Level Controller Module Operating Voltage: DC 12-15V(AC 9-12V) Standby Current: 10MA Current: 40MA Maximum Load: 10A 250VAC, 10A 125VAC, 10A 30VDC, 10A 28VDC, 10A 12VDC PackageList:1 x Water Level Controller Module Note1. There is no probe(cable) included in the package, no need to use a specific probe, the probe can be made of household cable. 2. For safety, use a well insulated AC DC power supply.