Does the VisionPRO 8000 have a backup power feature for the clock?
Yes, the VisionPRO 8000 features a real-time clock that keeps time during power failure and automatically updates for daylight savings. This ensures you don't lose time settings during outages.
From the official Honeywell Th8110U1003 Visionpro Thermostat manual, page 2
Have a follow-up question?
Answers from the official manual.
Common questions