pyronix low battery

[harold11]

Hi All,
Bit of a newby question I'm afraid.
I have inherited a pyronix enforcer system after moving house... and I've never owned an alarm before
It has battery low on the panel.

I have bought batteries for what I think is either a MC2-WE or SHOCK-WE sensor.

To change the battery, do I just literally remove screw, change battery and screw back in, or do I need to do something on the panel first to stop it alarming/ to make sure it will be detected post battery change?
And presumably the alarm will go off when I remove, but I can just enter code/ press button on the fob?

Or am I just overthinking, and should just do it?

Thanks

 

[sparkymarka]

Just do it ….bear in mind some of the older devices use a cr2 instead of a cr123a