MotionSense from Moen uses sensors to detect movement in two sensing zones on a kitchen faucet to set water flow in motion. It works in three ways. The wave sensor at the top of the faucet starts and stops water with a hand movement above the faucet. The ready sensor near the base of the faucet identifies when an object is beneath the spout and it runs water while the item remains in range. Manual operation via a handle is the third option. It is powered by six standard AA batteries or an optional AC power adapter.