The AquaSense sensor faucet is a battery powered sensor faucet with an integral four inch cover plate for retrofit and new construction. The faucet incorporates an infrared convergence-type proximity sensor into the chrome plated cast brass spout. The faucet is furnished complete with sensor module, spout module and in-line filter for easy installation. Standard equipment consists of 4 'AA' batteries, a 1.5 gpm vandal resistant aerator and an inlet for a 1/2 in[13] ball riser supply hose (furnished by others). Sensor range is factory set and nonadjustable. The batteries act as a battery back up when the -ACA plug-in type power adaptor is used.