Moen 8559BL Align M-Power Electronic Touchless Hands-Free Sensor-Operated Modern Bathroom Sink Faucet, Matte Black

Touch-free operation for improved hygiene Adjustable sensor activation distance from 3" to 12" (default 5-1/2") Vandal Mode: 30 second time-out feature Maintenance / Cleaning Mode: Allows for a 30 second deactivation for maintenance or cleaning Sentinel Flow: Eliminates stagnant water supply lines every 24 hours (factory setting = off) Metering Mode Feature: Adjustable run time from 10 to 180 seconds (factory setting = off) Battery 4(AA) with AC compatibility: For AC connection: Transformer 104630 required for up to 8 devices and 182538 connector for each device Maintenance / Cleaning Mode: Allows for a 30 second deactivation for maintenance or cleaning Adjustable sensor activation distance from 3" to 12" (default 5-1/2")