@Oman posted:Thanks Jonathan
I noticed that sounds continued after I cut power. I didn't see anything in included documentation about a battery, but I may have missed it. Is it a rechargeable battery?
I have MTH and Legacy, but this is new to me.
The battery is a standard 9v battery and does need replacing from time to time. You can purchase a BCR equivalent with a charging circuit through Hennings to replace the battery.