Farringdon tachometers (tachs, rev. counters) use Swatch designed stepper motors to give accurate, typically + or - 1%, readings from a variety of sources including the negative side of the ignition coil and sensors picking up targets on the flywheel or camshaft*.  The stepper motors are controlled by a microprocessor which allows the tachos to copy period chronometric action and to control the tell-tale hand in different ways.

​

All tachos are fitted with eight way M8 connectors on the rear of the enclosure and supplied with a cable and matching over-moulded connector.

​

Shift Lights with a threaded metal body held in place with a nut behind the dash are available to order. 

​