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