Water Level Controller Module Automatic Liquid Level Sensor Relay Board DC 12V for Pump

Features 1、Better Control: This sensor module can automatically detect the water level and control the on and off of the pump for stable operation. 2、Working Principle: When the water level is lower than the low water level, the water pump starts to supply water to the water tower. When the water level is higher than the high water level, the water pump stops supplying water. 3、NO and NC Ports: The water pump is connected to the automatic water injection tower at the COM NC port, and automatically pumps water from the water tower. 4、Wide Application: Can be used for automatic water supply of domestic water tower, water change of aquarium, automatic control of conductive liquid, etc. 5、Easy to Install: Designed to have a compact size and a light weight as well, the whole installation can be conveniently completed within minutes. Specification Item Type: Water Level Controller Module Model: SRD-12VDC-SL-C Material: PCB Standby Current: 9mA Working Current: 40mA Product Size: Approx. 44 x 29 x 19mm / 1.73 x 1.14 x 0.75in Maximum Load: 10A 250VAC, 10A 125VAC, 10A 30VDC, 10A 28VDC, 10A 12VDC. Interface Description: HIGH: Upper Limit Probe OUT: Output Probe LOW: Lower Limit Probe DC+: Positive Power Supply DC -: Negative Power Supply NC: Relay Normally Closed Contact COM: Relay Common Contact NO: Relay Normally Open Contact Package List 1 x Water Level Controller Module