Anautomatic faucet sensor is a device that automatically turns water on and off by sensing the user's hand movements. Its built-in sensor detects when the user approaches or leaves the faucet and automatically adjusts the water flow based on the movement. This design helps save water resources and reduces the inconvenience of manually operating the faucet. Automatic faucet sensors manufactured by China faucet factories use advanced sensing technology to ensure stable water flow and convenient operation.