How can I change the engineers code to my own (Citadel VR8)?
Tamper light showing on Citadel vr8 system?
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?
citadel xr2 alarm wont stop bleping every time i walk past sensorsjim?
how to reset CITADEL XR1 back to factory?