Accutach Company
Accurate Automotive Instrumentation Products
Accutach Home
'94-'04 Ford Clusters
Smiths Tach Calibrators
Analog Tach Calibrators
Single RPM Analog
RPM Selectable Analog
Reverse Lockout Timer
Downloads
Calibrated Gauge Faces
Calculators
General How-Tos
About Us
Contact Us
Legal Information
Obsolete Products
Site Map
Analog Tachometer Calibrator Products
Accutach sells two analog tachometer calibrator tools that can be used to calibrate many tachometers used in many vehicles from the 1960s to the early 1990s.  One product is a single-frequency stand-alone calibrator, and the other is an RPM-selectable peripheral designed to be used with an old DOS computer with a serial port.  Please contact Accutach to discuss how our calibration products might be able to calibrate your tachometer.

Coming soon.  This calibrator can be used to calibrate an analog tachometer such as those in vintage Mustangs at an extremely accurate single frequency (RPM).  As the components inside of these old tachometers age and the values drift, they are in constant need to tweaking to keep them accurate.  This calibrator can also be used to debug broken tachs by driving them with a known signal.  This calibrator can not be used to repair tachometers that have lost calibration across other RPM ranges.  It requires the use of a well regulated 12 volt power supply, such as a charged car or motorcycle battery.  Click here to learn more.
 
This calibrator can be used to calibrate and repair analog tachometers such as those in Fords, Acuras, Hondas and others of the 1980s and 1990s by generating an extremely accurate frequency that can be varied from 0 to over 10,000 RPM.  It requires the use of a PC running Microsoft Windows NT or newer with a standard 3.5mm stereo audio output and a well regulated 12 volt power supply, such as a charged car or motorcycle battery.  Click here to learn more.