Smiths 100mm (4in) diameter tachometer / rev counter fitted with a 1/2 vee black bezel in the style of those fitted to the Ford GT40 with a 0-8000 RM scale. The unit features back lighting via a 3-watt bulb. Easily calibrated for engines up to 12 cylinders. A version with "Red Line" section printed on the dial face between 6500 - 7000 RPM is also available