Bobrick Fino Surface Mounted Automatic Hand Dryer Cover — 18-8, Type-304 stainless steel 18-gauge, 1.2mm thick with #4 satin-finish vertical grain. Air-inlet is vandalresistant. Cover projects no more than 4" (100mm) from wall and is secured to mounting base with two recessed socket button head cap screws. Mounting Base — 1.5mm SECC punched and formed. Motor — Brushless 24Vdc with built in thermal protection. Ball bearings. Operates at 40,000 RPM. Blower — Backward curved radial bladed impeller in polycarbonate housing. Electronic Control — Infrared sensor automatically turns dryer on when hands are held under air-outlet opening andacross path of sensor. Remove hands from path of sensor and dryer stops. Electronic sensor has automatic shutoff approximately 85 seconds after dryer turns on if an inanimate object is placed across air-outlet opening. Afterinanimate object is removed, electronic sensor automatically resets itself and dryer operates normally Type 304 Stainless Steel, Brushed Satin Finish. Also Available in Black Finish.