Sloan ETF-80-4-B Bathroom Faucet, Optima Box Mount Transformer, Automatic w/Trim Plate - Chrome Troubleshooting LED lights indicate when faucet needs to be serviced Adjustable sensor range and time-out settings suit any water usage need Splash-proof Circuit Control Module Sensor Range Adjustment Screw User Friendly Variable Time Out Settings Filtered Solenoid Valve with serviceable Strainer Filter Bak-Chek Tee for Hot/Cold Supply 4" Trim Plate with Anti-Rotation Pin Vandal Resistant Spray Head with Pressure Compensating Flow Control Metal Jacketed Wire Protection for Sensor and Solenoid Le