How can I change the engineers code to my own (Citadel VR8)?
citadel xr2 need to turn power off?
citadel xri?
Citadel XR2 power off?
How to reset the tamper function on my Citadel VR8 alarm please?
Citadel XR1 how to remove the tamper light so you can operate the alarm?
Tamper light showing on Citadel vr8 system?
does a citadel xri have two battery's?
Citadel XR2 house alarm - Zone 7 keeps triggering?