Honeywell Ademco 5VDC 1.0A AC Adapter / ITE Power Supply A5W-050100 K0991

This is a Honeywell Ademco K0991 5VDC 1A I.T.E. Power Supply / AC Adapter. Its part number is A5W-050100. The Honeywell K0991 transformer that you will use with Honeywell's 5828 or 5828V wireless keypads. With the batteries that power these keypads they will only 'wake up' by a button press. If you would like your 5828 or 5828V keypad to stay 'awake' all of the time then the K0991 is what it will take to make that happen.