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MR33 FDR Checker Gear Ratio and Engine Speed Gauge

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MR33 FDR Checker Gear Ratio and Engine Speed ​​Gauge

With the MR33 Drivetrain Checker it is finally possible to measure and control the gear ratio and motor speed of RC model cars powered by 2-pole brushless motors.

Simply place the motor sensor on the motor, put the 7mm wrench on the wheel nut of a driven wheel and accelerate.
Now just read the value shown on the display and the job is done in 5 seconds.
Simple and uncomplicated, for example as part of the scrutineering before the run.

"Every club and every 1:10 electric racing series has been waiting for this device!"

If you just put on the engine sensor and accelerate, the (maximum) engine speed can be measured - perfect for checking the speed limiters of modern speed controllers.

"Developed and tested as part of the Euro Touring Series (ETS)."

Technical specifications

  • compact and ergonomic body with integrated stand
  • Dimensions: approx. 115mm x 42mm x 26m
  • Weight about 110g
  • 1.3 inch (3.2cm) OLED display with 128*64 pixel resolution
  • Very easy to read even in sunlight
  • Magnetic USB cable to power the device
  • Motor sensor with approx. 35cm long cable