Delta DEMD-311LF-NS Commercial Chrome Electronic Lavatory Faucet W/ Mixer. 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 DEMD-311LF-NS Commercial Chrome Electronic Lavatory Faucet W/ Mixer features a battery powered operation (1. 5V AA Batteries included) that powers the infrared electronic hand wash system. The water proof 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 tubular 8" spout, necessary mounting hardware, and a stunning Chrome finish designed to resist the scratching and tarnishing. This Electronic Faucet is ADA compliant and meets Handicapped Accessibility Standard. Mixer included, ideal for cold and hot water applications.