LiftMaster 878MAX Wireless Keypad exa-2000 antenna or you can use it

or you can use it in conjunction with user cards and PINS

you should check in with your local department to see if they approve this particular model

Sleek Metal compensated reader housing for mounting to metal door or window frames

Features a new SmartCNX programmable controller

LiftMaster 878MAX Wireless Keypad exa-2000 antenna or you can use itLiftMaster 878MAX Wireless Keypad The LiftMaster 878MAX Wireless Keyless Entry System has convenient access to your garage without using a remote control or key. It also has a personal four digit pin code that allows for easy entry. The 878MAX easily syncs to your existing opener's frequency. Note: This product is compatible only with Security+ and Security 2. 0 systems. It will not work with Security+ 3. 0 operators. Manufacturer's Warranty Period 1