The Honeywell 5878 wireless keypad was a compact, 6-button wall-mounted wireless transmitter that has been discontinued by Honeywell. This device permitted an alarm system or home automation device to be controlled remotely. The transmitter was typically used for security system arming, panic and controlling output relay operations associated with home automation devices. If you are looking for a similar device you can you always use a Honeywell 5828 wireless keypad or a Honeywell 5828v wireless keypad and even better yet you can always sign up for Honeywell AlarmNet Interactive monitoring services by GEOARM security. This will allow you to Control all of you alarm system features from the palm of your hand!