Najix

Thanks for the replies everyone, I have decided to get rid of the system and replace it with something else later on!

Hi, sorry if this has been asked before, I have tried searching without much luck! (And I don't know much about these) I have recently moved into a house with a risco gt600 alarm and some wireless pir sensors. we have had some work done and in the confusion 2 of the sensors have been thrown out. now whenever the system is being set it alerts saying check these zones. can anyone advise or point me in the direction of where to look to have these sensors 'unpaired' from the system and how to pair new sensors to the system or do we need an engineer to attend to do this? thanks in advance