When the AC power stops for a brief power outage the sense monitor loses power too and when the power returns the monitor has to reboot. Sometimes the power will drop again in a few seconds and on my little computers (raspberry pi) the flash memory cards often get corrupted. I don’t know if the sense is subject to power failures but having a super capacitor to keep the sense running for several seconds and provide a safe shutdown when the power fail exceeds the energy available in the super cap.