sixwheeledbeast

That's fine. Just note that if your using a PAYG SIM you need to make sure it doesn't expire by sending messages regularly. Also you'll have to keep an eye on the signal to make sure the network is still working. Pretty much all mobile providers have set dates to decommission older phone masts, some have started already. You can't rely on your mobile phone signal as a tell, it will likely use 4G assuming your phone is newer than your alarm... Monitoring has the benefit of polling which continuously checks the device can send/receive messages for those times you need it.

The better solution would have been to upgrade the panel to something with more modern connectivity. PSTN and GSM are both planned to be discontinued in the near future. A new panel could connect to services like notifications or monitoring and also have an app to provide remote control of the system. Pretty much all manufacturers charge for this service and require a registered installer to fit them.

I'm sure it will be in the manual, the GJD ones are * key from memory. Just hope your mobile network of choice doesn't update now...

I don't see why not.

I don't mind the blue light...

Yes, the LED is blue on the Bosch if that's an issue.

Maybe read the post again....

Anything but the Capture from Texecom are cheap tat IMO. Optex, Texe Capture or Bosch for me, has to have sealed optics.

Premiers have separate programmable volumes for chime and advisory tones

I'd agree with above, it looks like it says CS mount not C on the side of the lens? If it's suppose to have a C mount but you have a CS then the Flange Focus length will be out. You can only use a spacer ring going C>CS not CS>C.

I agree possible but unlikely. Jammers are becoming more common in attacks even if they're illegal to use. With boosters you can get GIGO, probably best for multiple access points.

Yuasa rate NP batteries as 5 year service life for use within alarm systems, other manufacturers maybe different. From experience you could get 10 years from a Yuasa one but it's best to swap before it's deteriorating.

Never used one but I'd guess Comms Fault? Has it tried to report the false alarm but the line is dead?

It may work, just at a lower sound output. You need a zone type that won't effect the system, I'd use Custom with everything disabled.