Ok, i've had a little explore now. Found the actual alarm unit and it's got A200 plus written on it so i presume that's the model of alarm.

The little black box i found originally is the sensitivity adjust for the ultrasonic sensors of which i have 2 and a strip across my windscreen that says "elscanner" on it.

I found another box which is the vibration sensor as well.

Also had a little play (not looked for the earths yet ) and the alrm appears to function correctly with the ignition on but it doesn't appear to be getting enough power when the ignition off.

Does anyone know if this model has it's own battery back up or not?

Appreciate the help

Phil