How can I change the engineers code to my own (Citadel VR8)?
sensors no longer active on my citadel xr2 alarm system?
How to reset the tamper function on my Citadel VR8 alarm please?
does a citadel xri have two battery's?
Tamper light showing on Citadel vr8 system?
how can i enter new code into citadel vr8?
citadel xr2 alarm fault. please help!!?
attack alarm?
Citadel XR2 house alarm - Zone 7 keeps triggering?