Honeywell Vista 20P PROM - Upgrade chip for the VISTA 20P Videos
Honeywell TC2 communicators: Total Connect PROM Upgrade Included
Honeywell TC2 communicators allow you to upgrade your alarm system’s PROM chip so you can enjoy new features from your system.
Honeywell VISTA: Upgrade Old System & Get Total Connect 2.0
Upgrade your aging Honeywell VISTA home security system with Total Connect 2.0 to enjoy a broad range of new features.