Our highest quality and easy to program stand-alone device that's simple to install and user friendly! The DoorKing 1515-080 keypad provides access control for virtually any application where digital code entry is desired for stand-alone applications. Features a high-grade powder-coated steel enclosure that will provide years of trouble-free use for residential or commercial sites. It works on any gate operator, but an ultra-low power mode can be enabled to allow it to work well with solar systems. The 1515 keypad is fully programmable from the beautifully illuminated backlit keys, and you also have the option of programming it with a smartphone using a free App and NFC communications (Android-compatible phones only).