Combination locks have numbers ranging from 00 to 99 on the dial. When you open a safe with a combination lock, you turn the dial to align all the digits next to each other in sequence (for example, “10-22-33-44”). This type of lock is usually used for small safes that need only be accessed occasionally by homeowners because it's easy to forget your combination if too much time passes between uses. Some combination locks also support the use of a key. In that case you would be able to open them either by turning the dials to the correct position or by inserting and turning a key.
Keyed padlocks don't contain dials. They offer superior protection compared to combination lock as it can not be opened unless you have a key.
Electronic locks work based on 4-6 digit combination on an electronic keypad. Once you enter the code it triggers the mechanism, handles turn and you can open the door of the safe. Electronic locks are easy to operate with: keypad offend has a light which makes it more accessible in dark and offers quicker access in comparison to combination locks. With combination locks spinning a dial takes longer. Even if you get the combo right on the first try, it takes longer to unlock the safe this way than with an electronic lock
Biometric locks are locks that use your unique biological characteristics to open. For example, the lock might scan a fingerprint or a retinal pattern. The benefits of biometric locks are that you don't need to remember a code or key, you can keep track of who has access to a room and revoke access if someone leaves the company, and it's fast: no more waiting for keys or cards in an office or home building. Biometric safes can only be opened by someone who has registered their fingerprint with the system. Offen more than one fingerprint cam be registered. Most biometric safes may have a "failsafe" key: A backup keycard is known as failsafe keycards. These keycards are created ahead of time and kept safe. Failsafe keycards are for accessing the safe if there is a power outage or a system failure.