Sensor for measuring motor/engine RPM's in airplanes and helicopters Used in conjunction with the SPM9548 Telemetry Module, the Sensor Board and Sensor is used for measuring motor/engine RPM's Plug and Play & includes 6" telemetry interconnect lead and bracket for mounting the sensor DualLink provides superior frequency path diversity High Quality Plastic Case Compact footprint Has a servo plug and plugs into the AR7200BX helicopter receiver providing RPM data for the governor
