I removed the 2.
How to remove old adt panel from wall.
Many detectors will be attached with adhesive.
After all alarm control panels have been disconnected and removed remove the remaining components such as opening detectors motion detectors and glass break detectors via unscrewing or pulling nails.
The main cover usually has clips that can be popped off from the bottom of the unit.
Depending on the model of the control unit this can be done by removing the main cover from the panel and then unscrewing the mounting screws underneath.
Posted by exogenous at 12 22 pm on november 23 2018.
Remove it from the wall.
There are two small slots on the bottom of the unit and my best guess is that a special tool a key is inserted into these slots to allow the unit to open up this person says putting a small screwdriver in each of the two slots will let you pry it away.