The Chicago 116.591.AB.1 Electronic Sensor Faucet. This HyTronic traditional electronic sink faucet features a dual-beam infrared sensor, a 2.2 GPM vandal-resistant aerator, and 3/8" O.D. copper supply tubes. It is designed specifically for patient care applications, and it comes with multiple field adjustable modes and ranges, and a Geberit Commander software compatibility. This model comes in a bright, Chrome finish, and it requires a 12V AC transformer (sold separately).