ABackset: 1.875" , Battery Life: 100,000 Cycles , Door Thickness: 1-5/8" to 1-7/8" , Finish: Brushed Chrome , Fire Rating: 3 hr. , Function: Office with Key Override , Grade: 1 , Hand: NH , Handle Type: Lever , Inside Depth: 1-11/16" , Inside Height: 8.25" , Inside Width: 3.25" , Mounting Style: Cylindrical , Number of Keys: 12 , Operating Temp. Range: -31 Degrees to 151 Degrees F , Outside Height: 8" , Outside Width: 3.25" , Power Source: (5) AA Batteries
A