How do I remove an old ADT system from my house?

You can just unplug it, and it should be fine.

Try calling the company that installed it. They helped me out when I had the same issue.

You can also reuse the wired sensors with a Honeywell panel if you want to keep them.

Bobby said:
Try calling the company that installed it. They helped me out when I had the same issue.

You can also reuse the wired sensors with a Honeywell panel if you want to keep them.

From what I can see, there are no hardwired sensors here, only wireless ones. There’s probably just one wired keypad, and it’s likely close to the main panel. The house might have been finished to the point where adding new sensors wasn’t practical.

You can use EyezOn, swap out the big green board, and set it up to monitor it yourself.

Don’t throw out the wired door and window sensors if you have them! Those are great for future alarm setups. Wireless ones are less reliable, and jammers are becoming more common among burglars.

William said:
Don’t throw out the wired door and window sensors if you have them! Those are great for future alarm setups. Wireless ones are less reliable, and jammers are becoming more common among burglars.

There aren’t any hardwired sensors on this system.

@Charles
That’s a shame. If you don’t want ADT, then it might not be very useful to you. The panel enclosure can still be reused if it’s in a good spot.

That Honeywell box is for VISTA SERIES panels, and it connects via AT&T for alarm signals. You’re probably paying monthly for it. You’d have to check if the software on it is locked to ADT. Canceling it might involve some fees, so check the contract.

@William
I’m not the person who posted this originally. Just someone familiar with alarm systems.

Also, it’s ADT, not ATD. The person who posted probably moved into the house and isn’t being charged for anything at all.

Just rip it out. It’s low voltage, so it’s not dangerous.

Guardian said:
Just rip it out. It’s low voltage, so it’s not dangerous.

Why do you think it’s bad? Isn’t it just a Vista20 panel?

Guardian said:
Just rip it out. It’s low voltage, so it’s not dangerous.

Yeah, Vista panels are solid systems. And what does low voltage have to do with anything?

Ember said:

Guardian said:
Just rip it out. It’s low voltage, so it’s not dangerous.

Yeah, Vista panels are solid systems. And what does low voltage have to do with anything?

Low voltage means it’s easier to work with for people who aren’t experienced with electrical stuff.

@Guardian
I’m still not following.

The system has both main power and backup power. The backup is the black battery in the picture. Disconnect a terminal from it, and the battery will stop providing power. The main power comes from somewhere else, probably through those beige-jacketed wires. You’ll need a voltmeter to find it, or just unplug all similar wires. Don’t short wires together while working on it. It’s all low voltage, so it’s safe to handle.

Unplug the power and disconnect the battery. You’re not being monitored, so there’s no need to worry about alarms going off. Then, list the parts for sale online. There’s a market for these older alarm systems among repair services.

If you’re good with electronics, you can use ESPHome and some cheap parts to connect to it.

https://github.com/Dilbert66/esphome-vistaECP

I did this with an old ADT system, and now I can control it remotely and get notifications.

@Natalia
Does this make programming the system easier compared to using the keypad? Thanks in advance!

Ember said:
@Natalia
Does this make programming the system easier compared to using the keypad? Thanks in advance!

It acts like a virtual keypad, so you still have to enter the commands, but it can be more convenient. If you had a basic keypad like the 6150, this will definitely be easier. Plus, you can set up self-monitoring and skip subscription fees. If you don’t know the master code, try the installer code first—it’s often left as the default. There are ways to reset it even if it was changed.

@Natalia
So it’s like a keypad replacement that also connects to the network for monitoring? What exactly do I need for this setup? I might still want to use paid monitoring for when we’re away for a long time.