How can I change the engineers code to my own (Citadel VR8)?
sensors no longer active on my citadel xr2 alarm system?
Citadel XR2 house alarm - Zone 7 keeps triggering?
citadel xri?
I have a Citadel XR2 alarm. Indicator light wont go off?
citadel xr2 alarm wont stop bleping every time i walk past sensorsjim?
Citadel XR2 upstairs remote?
how to stop the sensor beeping on citadel alarm?
citadel xr2 alarm fault. please help!!?
how to reset CITADEL XR1 back to factory?
citadel xr2 need to turn power off?
Citadel XR1 how to remove the tamper light so you can operate the alarm?