Toilet sensors create touch-free washroom, keeping your hands clean. We offer professional toilet urinal sensor installation, maintenance & repair services. WC Duct Type Flush Valves. •, Sensor Urinal Flush Valves. •, Manual Urinal ... Floor Trap. Flush Valves > Sensor WC Flush Valves. AWS 710ACH. AWS 710ACL ... Toilet Bowl Sensor Flush Valve (Hydraulic) 102CA01-H (31800) *Contact us for best price · Sale Toilet Bowl Sensor Flush Valve How do you flush a toilet with a sensor? You can activate a flush by holding the palm of your hand up to the sensor for a few seconds before taking it away. Or place a piece of toilet paper. The sensor detects when infrared light is reflected from the user. A small microchip sets rules to reduce the chance of a spurious activation when a person simply walks past the sink or toilet . When necessary, t...