my dad has an Optima 2 plus alarm, fitted years and years ago. He needs a spare part. Its the little box thing that has a red flashing light when disturbed that is fitted on the window. Tried searching but its hard because I don't even know what its called. Any ideas? Many thanks

SP, August 2015

it could be a vibration sensor easy to replace if you remove the cover you will creat a tamper reset the panel with you code
you can buy them on line

gts, August 2015