Features:

• Programmable 3-in-1 automotive trip computer, diagnostic scan tool, and up to 37 digital gauges in one (vehicle dependent)
• Watch fuel consumption, cost-per-mile, coolant temperature, engine speed, horsepower, and much more in real time
• Works on all 1996 or newer OBDII cars, including gas, diesel, propane and hybrid vehicles
• Checks for Diagnostic Trouble Codes (DTCs), clears the codes, and can turn off the "Check Engine" light
• No tools required for installation, small size fits nearly anywhere in the vehicle

Editor Reviews:

Product Description:
Programmable 3-in-1 automotive trip computer, diagnostic scan tool, and up to 37 digital gauges in one (vehicle dependent) Watch fuel consumption, cost-per-mile, coolant temperature, engine speed, horsepower, and much more in real time Works on all 1996 or newer OBDII cars, including gas, diesel, propane and hybrid vehicles Checks for Diagnostic Trouble Codes (DTCs), clears the codes, and can turn off the "Check Engine" light No tools required for installation, small size fits nearly anywhere in the vehicle

Amazon.com:
The ScanGaugeII is a 3-in-1 automotive computer that combines a multifunction trip computer, diagnostic scan tool, and up to 37 digital gauges in one small package. It connects easily to your vehicle's On-Board Diagnostic (OBDII) port and communicates 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 all 1996 or newer OBDII cars, including gas, diesel, propane and hybrid vehicles, as well as vehicles with the latest CAN systems. A 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.

Expandable Add-A-Gauge Technology
The ScanGaugeII has been redesigned with expandable Add-A-Gauge (aka XGauge) technology. Add to the original 12 gauges by customizing the ScanGaugeII to monitor up to 25 more--depending on your specific vehicle's sensor design. Four gauges can be displayed simultaneously and 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.

Gauges include:

• Horsepower
• Fuel Consumption Rate to 1/100th per gallon/liter
• Vehicle speed (MPH)
• Fuel Economy
• Cost Per Mile/Cost Per Trip
• Manifold Pressure (not available on some vehicles)
• Battery Voltage
• Engine Load
• Coolant Temperature
• Throttle Position
• Intake Air Temperature
• Ignition Timing
• Engine Speed (RPM)
• O2 Sensor Data
• Fuel Trim
• Hybrid Battery Charge (for Toyota Prius and Ford Escape)
• And many more, depending on your vehicle's sensor design

ScanGaugeII makes diagnostics easy. View Larger

Multifunction 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 trip computer also integrates information from the Cost Per Mile gauge. Simply enter how much you paid per gallon or liter of fuel, and the ScanGauge will automatically calculate the cost of your trips as you drive. The ScanGaugeII features 12 individually stored parameters, including:

ScanGaugeII features 63 backlit colors. View Larger

• Maximum Speed
• Average Speed
• Maximum Coolant Temperature
• Maximum RPM
• Driving Time
• Driving Distance
• Fuel Used
• Fuel Cost
• Trip Fuel Economy
• Distance to Empty
• Time to Empty
• Fuel to Empty

Rating : - good readout info, when it works
When I first installed it, the side port didn't work, so I pluged it to
the back. I left it in the car, it was hot that day (85F), the display locked up. Then it worked fine for a week. Today it locked up again, so I unplugged it and plug it back again, I got a blank screen, I tried the side port and it worked again. I called the company (manufacture)several times with no answer, I also emailed the tech support, no answer. I am returning it to Amazon.