The ScanGaugeII is a 3-in-1 automotive trip computer, diagnostic scan tool, and 12 digital gauges in one small package. It connects easily to your car’s On-Board Diagnostic (OBDII) port, communicating directly with the vehicle’s computer. Not sure if your car uses OBDII or Controller Area Network (CAN)? The unit will automatically determine which system to use and switch to it. The ScanGaugeII works on 1996 or newer OBDII cars, including gas, diesel, propane and hybrid vehicles, as well as vehicles with the latest CAN systems, and the detachable cable allows for easy transfer between multiple vehicles. Its menu-driven operation means there’s no need to memorize complex sequences, and no tools are required for installation. 12 Digital Gauges
With 12 built-in gauges — four can be displayed at once — the ScanGaugeII can help determine fuel consumption rates, allowing you to adjust driving behavior and save gas. At the same time, keep an eye on coolant temperature, engine speed, and much more in real time. If there is a young driver in the house or friends borrow your car, the ScanGaugeII can record speeds of up to 158 mph and store the information for you to view later, so you will know just how fast your young driver or friend was going last night. If the unit was disconnected, you’ll know: An indicator will be displayed in the trip data.


ScanGaugeII mounts easily to your dash.
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Gauges include:

  • Fuel Rate
  • Vehicle speed (MPH)
  • Fuel Economy
  • Manifold Pressure (not available on some vehicles)
  • Battery Voltage
  • Engine Load
  • Coolant Temperature
  • Throttle Position
  • Intake Air Temperature
  • Ignition Timing
  • Engine Speed (RPM)


ScanGaugeII makes diagnostics easy.
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Scan Tool
The ScanGaugeII includes a diagnostic scan tool that can check for Diagnostic Trouble Codes (DTCs), clear the codes, and turn off the “Check Engine” light on 99% of 1996 and newer vehicles. (However, this feature may not work on some trouble codes in Dodge vehicles.) If any DTCs are found, the ScanGauge will show how many there are as well as the codes themselves. Then you can use the Internet or repair manual to find out which is the failed part is, so you can repair it yourself or know what needs to be fixed at the mechanic’s shop. Trip Computer
Four sets of data are automatically recorded on the trip computer: Current, Today, Previous Day, and Tank Trip. The “current” trip restarts after the engine has been off for more than 3 minutes. The “today” trip restarts after the vehicle has not moved for 9 hours, and the data from “today” is moved to “previous day” when you restart the car, so you don’t have to reset the computer every time you begin a trip. “Tank trip” resets when you fill up the tank. It can provide you with “to empty” data and other useful information, which can be viewed any time during the trip. The ScanGaugeII features 11 individually stored parameters, including:


ScanGaugeII features 63 backlit colors.
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  • Maximum Speed
  • Average Speed
  • Maximum Coolant Temperature
  • Maximum RPM
  • Driving Time
  • Driving Distance
  • Fuel Used
  • Trip Fuel Economy
  • Distance to Empty
  • Time to Empty
  • Fuel to Empty

Personalize It
A large, high-contrast LCD display makes viewing the information easy, and both the display and keys are backlit and can be set to off, low, or high. With 63 possible colors, user settings, tank trip data, and vehicle settings that are automatically saved, and up to 10 user commands that can be stored and recalled, the ScanGaugeII can be easily customized to suit your needs.

Customer Reviews: Read 27 more reviews…

5 out of 5 stars Feature Packed!

After reading several other reviews on the web for this product, I decided to place an order for one. I just received the unit this week and immediately hooked it up. You should set your engine size, fuel type (gas/diesel/hybrid), units of measure, and your fuel tank size - rounded down to the nearest whole number to allow for the best accuracy in the scangauge. It’s a simple installation. Just plug it into your vehicle’s OBDII port and choose a suitable mounting location that doesn’t interfere with your other gauges or present a safety hazard. (velcro strips are included for no muss/no fuss installation, but you could devise a more permanent mount)

Depending upon the parameters that your vehicle reports, here are some of the things this device can show you:

4 sets of trip data is stored - Current Trip, Today’s Trip, Previous Day, and Current Tank. In addition, fuel economy, fuel used, maximum coolant temperature, distance, maximum rpm, drive time, maximum speed, average speed, distance to empty, time to empty, and amount of fuel to empty.

The digital gauges are for fuel economy, fuel rate, digital speedometer, tachometer, manifold pressure, battery voltage, coolant temperature, intake air temperature, engine load, ignition timing, throttle position, and open/closed loop. You can display any choice of 4 of these digital gauges on the gauge screen at one time and it’s easy to cycle through them. Not all vehicles will report every one of the above parameters through the OBDII interface. If the data is not available for the chosen gauge, then there will be no display.

The final thing that this gauge is useful for is to read and reset trouble codes and your “check engine” or “service engine soon” lamp. It captures the conditions present and stores them in flash memory if a trouble code is thrown so that you can review what state the various gauges were in when the trouble code triggered.

Again, I just received this item this week, but did quite a bit of research on it before purchasing. I am very impressed by the amount of information the ScanGauge makes available. Utilizing the data, I believe I’ll be able to improve my gas mileage, as I will have instant feedback on my inputs as a driver. It’s fun to use too. One other thing I forgot to mention is that you can program the back-light to 63 different colors. It comes with 7 standard colors already programmed.

Read more and buy ScanGauge II 3-in-1 Compact Multifunction Vehicle Computer with Customizable Display at cheapest price here!

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