My Boost Controller has the ability to Display Speed. I have always used a Ford Sensor (the one that goes in the Gearbox). Obviously this is affected by Wheelspin and mine is actually not working properly.

I have 3 options. I can either buy :-

A new Ford Gearbox Sensor
A new Aftermarket Gearbox Sensor (such as 'Brantz' or 'Terratrip' etc)
A different type of Sensor altogether that picks up off the rear wheel.

I know that the Stack Speedo's etc use a Magnetic type sensor that you can set to 'See' the Rear Wheel Studs. My Blitz unit has 1 wire that is looking for a Speed signal, will this type of Sensor give off what the Digital Unit wants to see? I know the Blitz unit isn't quite as advanced as Stack etc, but it has always been surprisingly accurate, I would just like to improve upon it.

Any help appreciated!!