Controller Module for Automatic Liquid Detection, 2V DC Relay Board for Efficient Pump Control.

1. Improved Control: This sensor module can automatically detect the water level and control the pump's activation and deactivation for stable operation. 2. Operating Principle: When the water level is below the low water level, the water pump starts supplying water to the water tower. When the water level is above 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 system via the NC COM port and automatically pumps water from the tank. 4. Wide Application: Can be used for automatic water supply to domestic water towers, aquarium water changes, automatic control of conductive liquids, etc. 5. Easy to install: Designed to be compact and lightweight, the entire installation can be completed in minutes. Specification: Item Type: Water Level Controller Module Model: SRD-12VDC-SL-C Material: PCB Operating Voltage: DC 12V, DC 10-15V Standby Current: 9mA Operating Current: 40mA Product Size: Approx. 44 x 29 x 19 mm / 1.73 x 1.14 x 0.75 inches Maximum: 10A 250VAC, 10A 125VAC, 10A 30VDC, 10A 28VDC, 10A 12VDC Interface Description: UP: Upper limit probe OUT: Output probe DOWN: Lower limit probe DC+: Positive power supply DC-: Negative power supply NC: Normally closed relay COM: Common relay NO: Normally open relay

Operating Instructions: Wiring according to the diagram.

Package List: 1 x Water Level Controller Module