I need a spare part for a optima 2 plus burglar alarm?

you woul be better off upgrading the control panel and fitting a newer optima model, with RKP. You stated a friend fitted. If they get from an electrical wholesalers- unless trade it will not cost you an arm and leg, also get them to replace the 1.9ah battery at the same time as it will save asking the question:-
where is my battery?
can i change my battery?
the outside bell sounds when the mains is switched off?

Mike

mike
November 2010