Exterior Length: 5 1/8"Exterior Width: 3 1/8"Interior Length: 7 1/2"Interior Width: 2 7/8"Interior Projection: 1 3/4"Includes two keys and one Remote Control (maximum five Remotes per unit)Up to six User Codes (4 - 10 digits in length)One master code for function setupEquipped with code protection functionOne-time access code availableAuto lock function (6 - 60 seconds)LED illuminated keypad for nighttime visibilityPower: 6V - 4 AA Batteries, Not Included. (Estimated battery life, 1-year)Low battery alertEasy installation, no wiring requiredOne-year warranty for electronic componentsMounting Hardware: Combination screws that suit both wood or metal door mounting 
