Simply the BEST Universal Electronic Speedometer Calibration Unit Money Can Buy!

Exclusive Features:

  • Easy To Use HUMAN READABLE Adjustments - No Lookup Tables or Dip Switch Settings!
  • Calibration Ratio Range from ~99.99 to 00.01.
  • Can be Used to Reset or Modify Transmission Shift Points, Active Steering and Other Speed Related Systems.
  • Compatible With Any Speed Sensor or Speed Signal Without Adjustment!
  • Rugged Output Drives Virtually Any Electronic Speedometer!
  • Indicator LED's Confirm Input, Power & Output Signal Functions Making Your Installation & Trouble-Shooting A Snap!
  • Designed to Exceed OEM Automotive Specifications for Temperature, Vibration, Electrical Spike & Short Circuit Protection.
  • Can be Used as an English (MPH) to Metric (KPH) Converter for Your Existing Speedometer.
  • Designed to be used for On-The-Fly Speedometer Ratio Changes for 2 speed gearbox & differential assemblies (typically used in heavy trucks).
  • Easy to Readjust for Seasonal or Multiple Sets of Tires.
  • Built-In Test Oscillator Helps in Installation & Calibration.
  • No Output When Sitting Still Preventing Your Vehicle From Logging Undue Mileage.
  • Good For Engine Control, Cruise, Transmission Control, & Electronic Speedometers.
  • Only 2.25" X 2.5" X 1.0" & Very Easy to Install - Includes Complete Documentation.
This unit remains installed on the vehicle to be calibrated.
SpeedChanger II
New & Dramatically Improved Electronic Ratio Adapter SPEEDOMETER CALIBRATION UNIT



Price: $179.95*
*Plus Shipping and Handling