Chicago Faucets’ E-Tronic 40 hands-free sensor faucet responds and adjusts quickly to different types of users, minimizing false activations and maximizing water savings. A dual-beam infrared sensor with multiple, programmable operating modes compensates for any variances in restroom structure or design. Above-deck components and remote diagnostic technology allow for easy programming and maintenance in public or commercial restrooms. It comes in a variety of touch-free models. The Commander handheld programming unit allows maintenance personnel to adjust, monitor and program the faucet.