Transfer your gas engine RPM directly to your Radio. Suitable for e.g. to measure the maximum RPM in flight or on the ground.
This telemetry speed sensor picks up the speed signal of your ignition from the appropriate port on the ignition and transmits the information directly into the telemetry RPM port of the Spektrum telemetry receiver.
The sensor works with many common ignitions.
Royal mail at £3.95, or Express at £6.95.
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