Re: Help with adding two window sensors to ADT alarm.

[Frank Kurz <tech@xxxxxxxxxxxxx>]

On 26/10/2010 6:15 PM, swarthmoredoc wrote:
> Just added two new windows in my basement and would like to add my two
> Honeywell wireless magnetic sensors to my existing system without
> having ADT come out and charge me.  I have an ADT Safewatch panel
> which is an adapted Vista 20P panel.  Apparently the ADT installer
> code is a commonly available four digit number.  How would I add these
> two sensors?
>
> Thanks!
>
> Bill

I would advise against programming the panel yourself while you're still
under contract.

This having been said, I recently took over an ADT Vista 20.  Without a
full alpha keypad I wouldn't attempt to add wireless devices.  The Vista
20 manual is readily available online.  If the installer exited
programming with *99 command you should be able to get "in" by powering
the system down (remove battery and AC) and then powering back up.  Go
to any keypad in the house within 60 seconds and press "*" and "#"
together.  If the keypad displays "20", you're "in" and can proceed to
program the system.

You NEED a full alpha keypad.  You NEED the programming manual and some
basic understanding of alarm terminology.

If you screw up the programming sequence, the installer that ADT
dispatches is liable to charge you double to fix it.