The old lock stopped working some time ago but could still be used. Then we lost a bunch of keys and the old security key.
Couldn't risk it so replaced the whole thing. Identical to old unit and fitted easily.Nice plastic cover on new key makes it easy to identify. Nobody seems to do new keys though and I would have liked 3. How about it Fiamma.. Good service and fast delivery. This is for sliding door security folks and we wouldn't be without it.