PIR issuing low battery warning tone

[Royston]

According to my Bailey Tracker fault finding notes the PIR requires a new battery it uses a PP3 battery,
Question is how do I get access to the battery to replace it.
Any advice greatly appreciated noise very irritating at night, Royston

 

[Mike_S]

There is a small (and easily lost) screw on the bottom of the PIR. Removing this allows the cover and "lens" to lift up and off giving access to the PP3 battery.
Mike

 

[Royston]

Thanks Mike ,the screw is very small luckily I have a set of small magnetized sockets which held the screw in place when I replaced the battery, peace has returned

Royston