The EC-3105 from T&S Brass & Bronze Works is designed to accommodate 4-inch center-to-center, wall-mount installations, which allows users to retrofit with efficient, hygienic sensor faucets without altering existing hole configurations. It includes a water-resistant control module with internal flow control switches, and customizable auto timeout and shut-off delay. An optional auto-flush feature flows water for 30 seconds after every 12 inactive hours. It has plug-in AC transformer or battery-power options, with a 2.2 gpm vandal-resistant aerator and a mechanical temperature mixing valve with integral check valves and a polished, chrome-plated brass body. Options include a hydrogenerator; thermostatic temperature control mixing valve; and available water-saving, laminar and nonaerated outlet devices. ChekPoint sensor faucets can decrease the spread of germs and boost sustainability, reducing water use by up to 1 gallon per hand-wash. 800-476-4103; www.tsbrass.com.