You won’t find another used Ademco 6139 keypad this clean. This is a rare, discontinued keypad that you need to program the older Vista 20 SE & 10SE type panels. It will also be able to program newer Vista 50P, 40P, 20P, & 15P control panels. It’s a must have for programming the older panels, bc the new Honeywell/Residio 6160 keypads won’t work with the older panels anymore. It comes with the wire harness to connect to the four conductor wire you’re using.
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