Pyronix Enforcer error

[WillSmyth00]

Last week my alarm panel reported "Downstairs Hall Wireless - low battery".
The Downstair hall sensor is on our front door and is the main entry/exit.
I have replaced the battery (twice) but the error will not clear.
According to information I have seen it should just be a matter of accepting the
error with a YES on the panel. Any ideas on how to resolve?
Thanks in advance
Willy

 

[DIYSOS2018]

Are you sure there are no other sessions? That naming convention isn’t usual for a sensor fixed to a front door

 

[Handymanjo]

Have you put the battery in the correct way round?
Always use a good quality battery brand. NOT cheap and cheerful.
Would suggest you change all batteries in all devices at the same time.