ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor
ScanGauge III Ultra-compact OBDII Vehicle Monitor

ScanGauge III Ultra-compact OBDII Vehicle Monitor

Product Information
$299.99 Save: $30.00

Average Rating

Drive now, Pay later!

Make monthly payments with no hidden fees! Learn More
Introducing the ScanGauge 3

Monitor Your Vehicle’s Most Vital Systems in Real Time

ScanGaugeIII can help you monitor your vehicle’s most vital systems and provide the kind of real-time information you’ve been missing. Features include built-in digital gauges, 5 sets of trip data and an easy-to-use Scan Tool that reads and clears trouble codes — all in an ultra compact design that installs in minutes.

Works with 1996 and newer OBDII cars, trucks and hybrids
  • Compatible with all OBDII protocols
  • Capacitive Touch Display with over 16 million colors
  • Read Trouble Codes & Clear Check Engine Light
  • Multiple Trip Computers
  • Automatic XGauge Configuration
  • Customizable Visual and Audible Alarms
  • Up to 9 Gauges Displayed at Once with Multiple Pages of favorites
  • Free Wireless Updates

Easy to Install No Tools Required:

Installs in just minutes without tools. Simply plug the ScanGauge into the diagnostic connection under the dash.

No Batteries Required:

The single connection to the diagnostic connector under the dashboard is all that is needed.

Automatic Protocol Determination:

ScanGauge automatically determines the protocol your vehicle uses and connects.

6-Foot Cord and Magnetic Window Mount:

The ScanGauge can be mounted up to 6 feet from the under-dash diagnostic connector. The included Suction Cup Windshield Mount allows the ScanGauge to be quickly detached and then used to troubleshoot other vehicles.

User-Friendly Capacitive Touch Display:

Simple touch operation allows you to quickly and easily access the powerful features of the ScanGauge. Swiping two fingers up or down will raise and lower the brightness

Color Backlight Display:

Match your instrument panel for an integrated look.

English & Metric Units:

The Digital Gauges and Trip Computer information can be shown in either English or Metric units of measure, including Kilometers, Liters, Celsius, and kPA.

Digital Gauges

ScanGaugeIII provides real-time gauges to show you what is going on “under the hood” with built-in digital gauges. The gauge screen allows you to select and display up to 9 gauges at a time, so you can monitor the current operating conditions of your vehicle in real-time.


In addition to the standard set of gauges, ScanGaugeIII also includes the exclusive X-Gauge technology. With XGauge, you can add additional vehicle specific gauges automatically with it’s NEW Auto Scan for XGauges or by manually entering them.

Learn to Improve Your Gas Mileage

The US government has put out a report that says driving habits can change fuel-economy by up to 33%.ScanGauge provides real-time data about your vehicle’s instant and average fuel economy, fuel used, cost of fuel used for each trip, cost per mile, gallons per hour and more! There are many ways to reduce your fuel usage and increase fuel economy. Real time feedback like what the ScanGauge provides is one of the most effective.

Real-Time Fuel Economy Gauges

  • Instant Fuel Economy
  • Average Fuel Economy
  • Gallons/Liters per Hour
  • Cost per Mile
  • Trip Fuel Cost

Automatic Trip Computers

With four built-in trip computers, the ScanGauge can keep track of everything from fuel cost to distance traveled and everything in between. Data is stored on the ScanGauge and is retained even when the power is disconnected. Each trip computer starts automatically and information is available anytime during the trip.

Time & Distance Trip Computers

The ScanGauge includes three trip computers based on time and distance. They include the Current Trip, Today Trip and Previous Day Trip. Each trip computer starts automatically and tracks the following parameters:

  • MPG
  • Fuel Used
  • Max Coolant Temperature
  • Distance Driven
  • Max RPM
  • Hours Driven
  • Max MPH
  • Average MPH
  • Fuel Cost

Tank Trip

The ScanGauge includes a trip computer based on the current tank of fuel.The tank trip computer starts automatically when you tell ScanGauge you have filled your tank.

  • MPG for current tank
  • Fuel Used on current tank
  • Tank to Empty
  • Distance Driven
  • Distance Until Empty
  • Hours driven on current tank
  • Hours to Empty
  • Average Speed
  • Fuel Used Cost

Turn off That Check Engine Light!

The ScanGaugeIII can check for Diagnostic Trouble Codes (DTCs) and if found, can display how many there are and the Trouble Codes themselves along with the code meaning. You are also able to view pending codes if there are any to catch problems before they become worse. The ScanGaugeIII can scan your vehicle for emissions readiness and let you know what if any tests have not passed before you take your vehicle in for emissions testing.

Is Your Vehicle Ready for Emissions Testing?

Some states now require that before running emissions checks, the vehicle self-tests have to be completed and cleared.  The ScanGaugeIII reports this “Readiness” and what tests may not have passed yet.

Read & Clear Pending Trouble Codes

If no codes are found and your Check Engine light is still on, your vehicle may be storing pending codes. The ScanGaugeII provides a method to force clear any detected or undetected Trouble Codes with just a few touches of the screen.

CA Residents: WARNING: Cancer and Reproductive Harm -

About Manufacturer

Designing Products For Vehicle Diagnostics Since 1996 

Linear Logic was founded in Arizona in 1982. Early products were directed toward the Apple II computer and it’s later series. Other products involved aircraft intercom and headset products.

In July of 2004, Linear Logic became a Limited Liability Company (LLC). We have been making products for vehicle diagnostics since 1996. In 2004, we introduced the original ScanGauge. This was a new-to-the-industry product which turned ordinary diagnostic data from the vehicle into useful gauges and information that could be viewed in realtime.

The First ScanGauge  

In May of 2006, the ScanGaugeII was introduced. It was in response to requests to make the display larger, the case smaller and the backlight in more colors than just orange-red. This and much more was done and more recently the ScanGauageE was developed for people who wanted a lower cost smaller unit that would be optimized for reducing fuel cost.

Product Reviews

Average user rating

5 / 5

0 reviews