Reddit reviews Alarm.Com ADC-200M-EVD-L Alarm Control Module
We found 1 Reddit comments about Alarm.Com ADC-200M-EVD-L Alarm Control Module. Here are the top ones, ranked by their Reddit score.
We found 1 Reddit comments about Alarm.Com ADC-200M-EVD-L Alarm Control Module. Here are the top ones, ranked by their Reddit score.
It's an alarm controller.
Likely provided cellular connectivity to a home alarm system so you couldn't disable the unit by cutting the phone lines.