Aquaterior Electronic Touchless Faucet with built-in motion infrared sensor provide hands-free usage Water flow will stop automatically when hands move out of sensing range for saving water Features plugged in design for power supply while also battery operated for backup power supply A chrome plated brass body and an upgraded ceramic cartridge for leak-free protection Being CEC, CUPC and NSF certified for worry-free usage; Compatible with under-mounted, deck-mounted, wall-mounted or pedestal sinks