Speakman S-8729 - Battery powered lavatory faucet. Above-counter hot/cold mixer with built-in check valves, adjustable temperature limit stop. Solenoid with built-in filter. Batteries and electronics housed above counter. All metal chassis and removable cover. Uses two (2) 3-volt lithium batteries. Low battery warning light (10% life remains). 60-second time out feature prevents floods. Ceramic manual override valve. Meets ASME A112.18.1/CSA B125.1