Tamper light showing on Citadel vr8 system?
sensors no longer active on my citadel xr2 alarm system?
How can I change the engineers code to my own (Citadel VR8)?
how to stop the sensor beeping on citadel alarm?
citadel xr2 alarm fault. please help!!?
Citadel XR2 power off?
how can i enter new code into citadel vr8?
I have a Citadel XR2 alarm. Indicator light wont go off?
citadel xri?