this post was submitted on 02 Apr 2025
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For reusing the ADT sensors that's a bit complicated depending on what was installed, when, etc. I'm going to assume it's a home alarm, if not you can probably ignore me! ๐
If all the sensors are hardwired you could maybe go with Konnected.
If they are wireless and it's older it might be a Honeywell Vista series alarm, ADT re-branded them as SafeWatch Pro as far as I am aware. Vista series alarms have 2 options that are available that I am aware of. 1 is an EnvisaLink 4 by Eyez On and the other is a DIY ESPHome based option called esphome-vistaECP. There is also Alarm Decoder, but they seem kinda dead now and all their stuff is sold out.
If it's a rebranded DSC PowerSeries the EnvisaLink 4 also works on it and the same person who made the other ESPHome project for Vista alarms has one for the DSC PowerSeries called esphome-DSCKeyBus
Aside from those I am unsure what all ADT has sold/rebranded over the years. Some stuff appears to maybe be Z-Wave, but unsure about all of it?
I am using esphome-vistaECP personally and once I got it setup it's been working flawlessly!
I don't see anything to indicate what it is. The sensors connect wirelessly to the panel that sits at the front door. But I see no branding on the sensors themselves unless maybe they're on the back and I need to remove them to check. The system was installed in like 2023. The panel itself has no visible branding except for the ADT logo and it is currently not connected to my Wi-Fi network but it does apparently connect to ADT through cellular over I think it's AT&T.