This Electronic Cabinet Lock Kit Set is used for cabinet, drawer, locker, storage box and etc. for household or business: supermarket, sauna club, gym, swimming stadiums, library, factory and office. It can provide good safety protection of your personal items while protecting your privacy. It also can improve children's safety , avoid your children or kids free to open the drawers or cabinet doors. Two Unlock Modes: Use card to unlock(this is perfect to use ); User card + Management card to unlock(this is perfect to use at business, such as hotel, massage etc). Use ID card to touch outside of cabinet, it lock flick and open the door(Note: the tag only can be used for Max.2.5cm thick door, the ID card can be used for Max.4.5cm thick door). About the battery, when the card is touched, if there is a long beep after unlocking, it means that the battery voltage is insufficient. At this time, the lock can be used about 50 times. Please replace the battery in time., Manufacturer: Akfldms