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

Scope of delivery:

• gauge
• engine sensor
• Magnetic USB cable 1m
• MR33 storage bag
• quick start Guide