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SH-V4A_Manual_en.pdf     [rev. 002] 

- 1 - 

www.healtech-electronics.com 

 

Electronic Speedo and Odometer Calibrator for Automobiles 

 

User Manual 

for SH-V4A 

 

 
 

 

1. Foreword 

Congratulations on your purchase of a SpeedoHealer calibrator unit. 
At HealTech Electronics Ltd. we are committed to produce the best calibrator devices 

available and we would like to thank you for choosing our product. 
 

The Harness Kits required for installation are supplied separately. Please make sure you 
have received the correct wiring harness kit for your vehicle. 

 
After installation, we recommend using our online calculator to calculate the required 
calibration value and to generate step-by-step programming instructions. You can also 

use our SpeedoHealer calculator app, available for iOS and Android devices. 
 

 
 

2. Features  Explained 

 

Simple User Interface:

 Easy to program, review and update the stored parameters. 

Extended calibration range:

 -99.9% to +9999.9% in steps of 0.1% 

This means the signal can be adjusted from 1/1000 to x100, in increments of 0.001. This 
range is efficient even for the most radical conversions and suitable for all kinds of 
custom applications as well (e.g. different engine-gauge combination, bike engine 

powered cars, etc). 

Dual-Bank Memory:

 Allows storing two independent calibration values and switching 

among them is possible by the press of a button. There is a clear, visual confirmation of 
the active bank and value in use. Perfect for areas where you have summer and winter 

tires of different sizes. 

Km/h conversion:

 Change from Km/h to MPH by the press of a button. 

Compact dimensions:

 Full SMD design. The smallest and lightest calibrator ever built. 

High-speed CPU:

 32-bit processing ensures high accuracy and immediate response to 

the input signal with no lag. Ultra-low power consumption and auto stand-by. 

Robust design:

 100% weather proof. Every unit is fully tested, guaranteed to work. 

All leads are protected against reverse voltage, short circuits and high energy transients. 

Wide operating range: +3V to +19V at -40C to +80C (-40F to +176F) 
 

Summary of Contents for SPEEDOHEALER v4

Page 1: ... 9999 9 in steps of 0 1 This means the signal can be adjusted from 1 1000 to x100 in increments of 0 001 This range is efficient even for the most radical conversions and suitable for all kinds of custom applications as well e g different engine gauge combination bike engine powered cars etc Dual Bank Memory Allows storing two independent calibration values and switching among them is possible by ...

Page 2: ...999 9 You need to enter all digits including the leading zeros e g enter 07 5 if you want to program 7 5 3 Press SEL to proceed to the first digit of the calibration value n next is shown and then the value of the first digit will blink Press SET repeatedly until the desired value is shown Repeat this step until all digits are entered 4 After the last digit has been entered press SEL to exit from ...

Page 3: ...ressed for one more sec until the value switches When Km h to MPH conversion is active the indicated speed and distance travelled will be converted but the displayed units of measure km h and km won t be changed It is possible to switch on off the Km h to MPH conversion only If you wish to use MPH to Km h conversion you have to program 60 9 1 609 multiplier on top of the calibration value you need...

Page 4: ...e 9 09 9 1 5 Warranty The SpeedoHealer is built to last all leads are protected against reverse voltage short circuits and high energy transients Only high quality components are built in and the epoxy resin encasing provides extreme protection for the internal parts from shocks vibrations and water To ensure trouble free operation all units are extensively tested prior to shipment Should you not ...

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