electronic keypad cabinet lock

Item:keypad cabinet lock Size: Lock panel---W58XH84XD20 mm Lock cylinder---W118*D45*H29mm Operate type: Enter code Main parts: Lock panel and lock body, door catch. [ External power supply(Emergency power supply used to supply power to lock when battery have no power), this parts would be send by free as from 1% to 3%] Power supply: 4 PCS 7# Battery Function and features: 1.Operate by code, don't need card or key 2.Have two versions: Public version(Open type) and Private version(Stand alone type). 3.Two-level code: Master code and User code 4.Low power alarm and LED prompt for operate. 5. Emergency open:Use a external device to supply power when battery has no power.