A sensor faucet, also known as an automatic faucet or touchless faucet, is a type of faucet that is equipped with sensors to detect the presence of a user’s hands or objects. Instead of manually turning a handle or lever to control the water flow, the sensor faucet automatically activates the water flow when it senses the user’s presence and turns it off when the user’s hands are removed. It’s worth noting that while sensor faucets offer convenience and hygiene benefits, they may require electrical power sources, regular maintenance, and occasional calibration to ensure optimal performance.