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This is the Futaba RPM Sensor (Optical type) For Futaba telemetry systems. This sensor, when used in conjunction with a telemetry-enabled radio system, is used to indicate the rotation speed of a propeller.
Barry Boes
2024-12-18 15:56:08
My first one lasted 40 flights, then it died and took out my entire SBUS2 port -- nothing plugged into it would work until I unplugged the tachometer. My second one started giving erratic RPM readings after 2 flights, then by the fourth flight it comes on and claims 55,000 RPM. When I plugged it into a new receiver, the receiver identified it as an RPM sensor and an altimeter and a temperature sensor, all with weird readings.
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