Just wanted to 2nd, or 3rd, the battery back-up monitors. But, be careful, I have one by Safety First (with 2 receivers btw) but, the battery part only works AFTER you unplug it. (Kinda senseless actually) But, I KNOW they have ones that automatically kick to battery when electricity fails (maybe Fisher-Price, I'm not sure). Helpful reminder, just keep checking those batteries, they run out fast when on battery alone.
And, don't kick yourself! You're doing great! I've missed more than ONE baby-monitor 'call' over the years! It happens.
And, did anyone suggest yet calling the electric company to see if you've been 'targeted' yet? I know you already called but, maybe it hasn't been done yet. I would think if it had, they should have phoned you to alert you!
(My mil is on oxygen 24/7 so, I know a little bit about it)