Specification: Origin: Mainland China Type: Module Condition: New Style: 5V/12V Module Size: 50*43*18mm/1.95*1.68*0.7in (Manual Measurement) Net Weight: 23g Module Function: Automatically Pump Water When The Water Level Is Lower Than B Probe Stop Pumping When Water Level Reaches C Probe A/B/C Water Level Sensing Wire Can Be Used With Ordinary Wire, The Wire Is Exposed 5cm. Automatically Pumping Water When The Water Level Is Lower Than Point B Stop Pumping When The Water Level Is Higher Than Point C Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1*Water Level Automatic Controller 1.Versatile Application: This high power water level automatic controller allows you to control various components such as liquid sensors, switches, solenoid valves, motors, and water pumps. Its versatility makes it suitable for a variety of industries and scenarios, including agriculture, manufacturing, residential water systems, and more. 2.Easy Operation: Simply connect the A/B/C water level sensing lines using standard wires, with the wire ends exposed by 5cm. When the water level falls below point B, the liquid sensor switch control relay board automatically activates the water pump. 3.Compact Size: With a module size, this automatic water supply controller module can seamlessly integrate into your existing system without causing any inconvenience or clutter. Its small footprint allows for flexible installation options, even in limited spaces. 4.Stable Performance: Engineered with precision and utmost attention to detail, this solenoid valve water pump motor switch ensures consistent and stable operation. It provides accurate water level sensing, precise control, and reliable functionality, giving you peace of mind and confidence in its performance. 5.Voltage Options: Whether your system requires 5V or 12V input, our water level detection sensor module is designed to accommodate both, providing you with the flexibility to adapt to various power supply configurations.