CD30 is a battery-powered codelock that fits directly on an interior door. The programming of codes is carried out directly via the keypad. It is possible to manually change the settings to leave the door unlocked if necessary. The batteries used are standard lithium cells. The CD30 is suitable for lock cases with a distance of between 105mm and 116mm between the center of the door handle and the center of the lock cylinder. It is designed to fit a Scandinavian lock case