Features: 1. Stable performance, high temperature resistance, low water pressure start, safe operation 2. Detects liquid flow and verifies if flow rate meets requirements, while providing a signal output in ON or OFF state through electrical contact switching 3. Equipment system detects the presence of a signal or control current to determine the operational status of the piping system by monitoring the flow switch electrical contacts (passing current in ON state, interrupting in OFF state) Principle: When water flow in the pipe exceeds 0.75L/min, the core displaces under water pressure and activates the magnetic source, triggering the magnetic sensor to output 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 100°C 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