I bought this in April for £105, hoping to fit it to my bus. I just haven't had the time, and having read stories on here am tempted to fit a dual CHT gauge. So here I am selling this It's a VDO 310-901-D Cylinder Head Temperature kit. So it's a CHT gauge (100-600 F), along with a metal mount and all the wiring you need. This includes the sensor itself, a looooong wire to reach up front, and extra fittings and fixings. Even comes with instructions and the original box. Looking for £100 inc. cheap/uninsured postage. £105 and I will send recorded to cover the full cost. I don't think you can buy this new any more. But the sensor itself is worth about £35. And even a cheap, unbranded CHT gauge could be around £50.
Cylinder Head Temperature gauge. For reading the temperature of the heads (underneath the spark plug) rather than the oil temperature. Much more accurate and the preferred option on a Type 4 engine.