The Bradley Aerix 2902-28 adjustable sensor-operated hand dryer features a sophisticated design that allows it to dry the hands completely in as little as 10 to 15 seconds. The unita€s cover is made from heavy cast iron that is 3/16 of an inch thick and finished with an attractive white porcelain enamel coating. The dryer runs at 80 percent energy efficiency to conserve electricity. The unit features an automatic sensor that turns the unit on, and the dryer shuts off after 60 seconds. As an added safety feature, the waved wire NiCr heating element automatically shuts off if the unit reaches a temperature that exceeds 320 degrees Fahrenheit. A universal-type motor with a high-speed universal brush powers the unit and can be adjusted from 3,800 RPM to 8,200 RPM. BradEX (BX) item: ships approximately 3 business days after the order has been entered and acknowledged. Overall dimensions: 10-1/2 H x 11-1/2 W x 4 D The dryer extends from its mounting surface by 4 inches after installation.