LiftMaster 878Max wireless keypad garage door opener is a versatile and secure keyless entry system that provides convenient access to your garage without using a remote control or key. It allows the user access to a home or garage with a 4number PIN. The temporary password option enables the user to program a temporary PIN for the visitors or delivery and service personnel to enter the garage without giving them your code. This temporary PIN feature only works on the garage door openers with the builtin radio receiver that supports this feature and will not work with external radio receivers. This keyless entry system is easy to use and can be installed in minutes. No additional wiring is needed as the keypad has a completely wireless design. The Security+ 2.0 rolling code technology assures a new code is sent every time the keypad is used and virtually eliminates the interference of radio signals. The backlit keypad makes it easy to see the number, no matter what time it is. It comes with a convenient feature that is a onebuttontoclose feature for garage door opener with a builtin radio receiver manufactured since 2006. This mode can be turned on or off through the keypad. It can be mounted directly on the garage door jamb. It works with all LiftMaster garage or door openers from 1993 to the present that has safety sensors.LiftMaster is trusted by millions of homes and businesses. As the leader in residential and commercial access, LiftMaster designs and delivers the safest, smartest door and gate solutions to keep everyone moving forward. We are advancing safety and security while testing accessories and operators to meet all requirements. Our safety accessories are designed and tested to work together with our openers and operators, providing the highest level of safety. From the products we create to how theyre installed and used, our lineup was developed with you in mind.