Alarm battery replacement | Alarm goes off after power cut 

Sorry that I'm looking to the side all video...
It's my first one and I was looking at the viewfinder and not into the lense.
If you have any questions I'll do my best to answer but if they're related to your specific unit it will be hard.
Background music used:
Track 1
Music: Take It by LiQWYD is licensed under a Creative Commons License.
creativecommons.org/licenses/...
/ liqwyd
Support by RFM - NCM: bit.ly/2xGHypM
Track 2
Music: Whenever by LiQWYD is licensed under a Creative Commons License.
creativecommons.org/licenses/...
/ liqwyd
Support by RFM - NCM: bit.ly/2xGHypM
Track 3
Music: Journey by Atch is licensed under a Creative Commons License.
creativecommons.org/licenses/...
Support by RFM - NCM: bit.ly/2xGHypM