I have a 60mm Greddy electronic boost gauge. I am having trouble adjusting the warning. Can someone please give me a how-to on adjusting the warning. I have had a play with it, and when the memory button is pressed the gauge shoots up to 1.5bar, but the red light comes on at 0.5bar.

Also, does the Greddy have a buzzer to act as a warning as well as the light?

I have checked the Greddy website and they only have a wiring diagram.

Thanks.