The SecureRefrig.com keypad-access control was chosen because it is tough and has lasted for years in heavy use commercial applications.   Secondly, it is back-lit; making for easy access night or day.

In addition, the factory default setting is to hold open the lock for three seconds after you punch in your pin number.  For example, you must open the door within three seconds after punching in your number, but can hold the door open for as long as you want.  It will lock as soon as it is closed.  However, the keypad-access control can easily be set to stay unlocked from 1 to 99 seconds after the access code is entered, giving you the convenience of opening the door several times without repeatedly punching in the code.

In addition, red and green LEDs display the working status of the system. The indicator lights red to indicate power, then turns green when access is granted. An internal sounder beeps as access is granted or if the code was punched in incorrectly.  There is also a tamper alarm that sounds if someone tries to break into the system.  Can also be accessed with RFID products.