Manufacturer Schlage Electronics Model CRM2 Dimensions 3.674 x 1.325 x 1.193 (93.32 x 33.65 x 30.3 mm); Optional base: 3.375 x 3.5 x 0.5 (86 x 89 x 13 mm) Entry Features Magnetic Stripe Operating Temperature 5% to 95% relative humidity, non-condensing / -40 to 185F (-40 to 85C) Power USB: self-powered; RS-232 [DB9F] model: 5V supplied by either PS/2 keyboard pass-through or USB power tap Compliances FCC, United States; CE Mark Europe, C-tic Australia, RoHS Warranty One year for material/workmanship and defects Weight 1.0000