An aircraft RPM censor is one of the most important instruments inside of an aircraft. This specific instrument measures the RPM of the Bendix in the Magneto, or the Bendix inside the Slick Magneto. More recently, they have been used in the Dual Magneto, but this is not a popular application.

The Bendix Magneto can easily be repaired if something goes wrong with it. Typically, you can tell there is something wrong with the Magento by the report sent back from the sensor. Since aircraft is not a popular focus of manufacturers, the most popular options are made by J.P. Instruments.

What Does the Magneto Run Off of?

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