Features: 1. Stable, high temperature resistant, starts under low water pressure, safe operation 2. Detects liquid flow and verifies if flow rate meets requirements; simultaneously switches electrical contacts to provide ON or OFF signal output 3. Equipment system detects presence of signal or control current passing through (flow switch electrical contacts engaged or disengaged) to determine operational status of the piping system Principle: When water flow in the pipe exceeds 0.75L/min, the core displaces under water pressure, activating the magnetic source to trigger the magnetic sensor, which outputs a "1" switching signal. This signal is sent to the device control system and amplified to enable water flow control. When water flow drops below 0.75L/min, the core returns to its original position via the reset spring force, causing the magnetic source to deactivate and the sensor to output a "0" signal, stopping system operation. Specifications: Power: 60-90W Voltage: AC 220V Current: 0.5A Water Temperature Range: up to 100C Pressure Rating: 0.6MPa Female Port Thread Diameter: G3/4 Male Thread (Compatible Pipe Diameter): G1/2 Cable Length: 26cm Quantity: 1 Piece Note: Please allow 1-3mm error due to manual measurement. Ensure you are comfortable with this before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you! Package Contents: 1 x Water Flow Sensor Switch