Features: 1. Stable, high temperature resistant, low water pressure start, safe operation 2. Detects liquid flow and line conditions to ensure requirements are met; provides ON or OFF signal output via electrical contact switching 3. Equipment system detects signal presence or control current flow (flow switch electrical contacts closed or open) to determine piping system working status 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 achieve water flow control. When water flow drops below 0.75L/min, the core returns via 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 (Fit 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 between monitor displays, the image may not reflect the actual product color. Thank you! Package Contents: 1 x Water Flow Sensor Switch