Touchpad reader Specifications:2 x AA Alkaline batteriesDimensions: 140 x 50 x 40mmWeight: 150gOperating temperature: -20°C ~ +60°CProtection rating: IP55 Features:Securely unlock the door using a PIN codePredefine up to 20 PIN codesEasy to install and program ENTR® Smart Lock Solution Fingerprint reader Remote control