We are not living in the house at the moment, so I will go down this morning and check details of the alarm, it doesn't look too old. My builder had someone look at it and whatever he did the light outside is flashing, although with no actual alarm going off. ADT are a joke. You ring an Irish number and every time I have rung I get what seems like an English call centre, who have never heard of Drumcondra and tell me they will try and locate an engineer in Dublin. It is the centre of Dublin, you would think they would have someone around. I will post details of model and make today and it would be great to get it resolved.