Delta 591T0221TR Commercial Chrome 4" Electronic Lavatory Faucet with Sensor. Delta's Line of Commercial Products are an industry leader in the Bathroom Faucets, Shower Fixtures and Bathroom Accessories. The large line of Commercial Grade Electronic and Battery Powered Faucets are designed to withstand the every day wear and tear, and last for years to come. These products are ideal for hospitals, schools, and other high traffic and high use applications. This Delta 591T0221TR Commercial Chrome 4" Electronic Lavatory Faucet with Sensor features a hardwire operation (24 VAC) that powers the infrared electronic handwash system. The waterproof infrared sensor features an adjustable sensing range and timeout that allows contractors to get the perfect setting, and conserve water. Also included with this faucet is a Hi-Rise spout, necessary mounting hardware, vandal Resistant 10" x 10" Metal Box for recessed or surface mounting, and a stunning Chrome finish designed to resist the scratching and tarnishing. This Electronic Faucet is ADA compliant and meets Handicapped Accessibility Standard.