I just purchased a UltraGauge for the ZHP. I was looking to add a Digital Coolant Temp gauge that would give a more accurate reading. When I found the UltraGauge I knew it exactly what I was looking for. This thing reads and clears engine codes, resets the "Check Engine" light, can monitor several parameters via the OBDII port. You can set alarms for the parameters being monitored which is really nice! If the engine coolant temp gets too high a beep sounds and the screen flashes. Very impressed with the quality and features with a unit that costs $70.
UltraGauge Classic and UltraGauge EM common Features:
Supports most 1996 and newer OBD II compliant gas vehicles***
Supports more than 75 selectable Gauges*
Real time and long term mileage gauges
Distance-To-Empty and Time-to-Empty gauges
Auto-Page advance, cycles through gauge pages
Configurable low and high alarms for every gauge
Audible and Visual Alarms
Alarms may be individually suspended.
Displays both current and pending trouble codes
Clear Check Engine Light and Trouble Codes
Current and pending Trouble Code Alarms
Automatic fuel fill-up detection **
Oil change and Service Gauges
Speed calibration for wheel, tire, and/or differential changes
Internal temperature sensor that can be monitored and alarmed
Fuel mixture closed and open loop indicator.
Large LCD Display
Display Brightness adjusts automatically to ambient light
Lightweight easy to route OBD II cable
Compact and minimally intrusive.
Mounts with either the included Velcro, windshield mount, or bracket mount.
Retains configuration and accumulated data across power cycles
Automatically detects and turns off display when vehicle is off
Comprehensive menu system
Comprehensive detailed user manual
UltraGauge EM can display 76+ possible gauges*.
Gauge selection is completely customizable. The actually gauges available are vehicle dependent. If your vehicle supports any of the gauges listed, then the gauge will be available for display by UltraGauge.
UltraGauge currently does not support Manufacturer specific gauges such as Transmission temperature.
% Engine Load
Engine Coolant Temperature (ºF)
Engine Coolant Temperature (ºC)
Short Term Fuel Trim Bank 1
Long Term Fuel Trim Bank 1
Short Term Fuel Trim Bank 2
Long Term Fuel Trim Bank 2
Fuel Pressure (PSI)
Fuel Pressure (kPa)
Intake Manifold Absolute Pressure (MAP)(PSI)
Intake Manifold Absolute Pressure (MAP)(kPa)
Intake Air Temperature (ºF)
Intake Air Temperature (ºC)
Mass Air Flow Sensor 1 (g/s)
Absolute Throttle Position 1 %
Bank 1 0xygen Sensor 1 Voltage
Bank 1 0xygen Sensor 2 Voltage
Bank 2 0xygen Sensor 1 Voltage
Bank 2 0xygen Sensor 2 Voltage
Run time since last start (hours:mins)
Miles traveled with Check Engine Light On.
Kilometers traveled with Check Engine Light On.
Fuel Pressure (Diesel & Direct Injection) (PSI)
Fuel Pressure (Diesel & Direct Injection) (10kPa)
Bank 1 Wide 0xygen Sensor 1 Lambda
Bank 2 Wide 0xygen Sensor 1 Lambda
EGR Flow %
EGR Flow % Error
Evaporative Purge %
Fuel Level % of full
Number of Warm-ups since Check Engine Light Cleared
Miles traveled since Check Engine Light Cleared
Kilometers traveled since Check Engine Light Cleared
Evaporative System (PSI)
Evaporative System (Pa)
Barometric Pressure – Inches of Mercury (inHg)
Barometric Pressure – Inches of Mercury (kPa)
Catalytic Converter Bank 1 Sensor 1 Temperature (ºF)
Catalytic Converter Bank 1 Sensor 1 Temperature (ºC)
Catalytic Converter Bank 2 Sensor 1 Temperature (ºF)
Catalytic Converter Bank 2 Sensor 1 Temperature (ºC)
Catalytic Converter Bank 1 Sensor 2 Temperature (ºF)
Catalytic Converter Bank 1 Sensor 2 Temperature (ºC)
Catalytic Converter Bank 2 Sensor 2 Temperature (ºF)
Catalytic Converter Bank 2 Sensor 2 Temperature (ºC)
Battery Voltage (Measured by ECM)
UltraGauge Battery Voltage (Measured by UG)
Load absolute %
AFR Commanded Ratio
Relative Throttle Position %
Outside Ambient Air Temperature (ºF)
Outside Ambient Air Temperature (ºC)
Absolute Throttle Position 2 %
Accelerator Pedal Position 1 %
Accelerator Pedal Position 2 %
Command Throttle Position %
Boost Pressure, (Relative Pressure) (PSI)
Boost Pressure, (Relative Pressure) (kPa)
Brake Horsepower 1
Brake Kilowatts 1
Torque 1 (ft lbs)
Torque 1 (N.m)
Brake Horsepower 2
Brake Kilowatts 2
Torque 2 (ft lbs)
Torque 2 (N.m)
Mass Air Flow Sensor 2 (g/s)– Calculated
Average MPG – General
Average KPL – General
Average L/100Km – General
Average MPH – General
Average KPH – General
Run Time – General
Miles – General (miles)
Kilometers – General (miles)
Fuel Used – General (gallons)
Fuel Used – General (liters)
Average Gallons/Hour - General
Average Liters/Hour - General
Fuel Level (gallons)
Fuel Level (liters)
Distance to Empty (miles)
Distance to Empty (kilometers)
Time to Empty
Volumetric Efficiency (MAP vehicles only)
General Trip Gauges
Short Trip Gauges**
UltraGauge continually calculates real-time Miles Per Gallon as you drive. UltraGauge displays real-time and average MPG to help adjust driving habits for maximum savings.
With Real-time MPG, UltraGauge can quickly answer those age-old fuel efficiency questions specifically for your vehicle:
Is it better to drive with the windows down or use the air-conditioner?
Tailgate up or Down?
Do truck tailgate & bed accessories help MPG?
Is MPG significantly affected by tire inflation?
Which gear is best when climbing grades?
Which speed delivers optimal MPG?
Does engine braking use more fuel?
Does MPG change based on altitude?
Although dangerous, does drafting really help?
and many more....
With UltraGauge it’s instant and easy!
Unlike MPG gauges found in high-end vehicles, UltraGauge is not limited to displaying a maximum of 99 MPG, UltraGauge displays up to 999 MPG.
UltraGauge features fully configurable alarms for every gauge. Both low and high alarms may be set and the trigger value of each alarm is completely configurable.
UltraGauge continually compares real-time gauge values against configured alarm values. If the alarm thresholds have been exceeded, an audio and visual alarm will occur. The alarm window will display the set value and the current value. While the alarm is occurring, the particular alarm may be easily suspended and will no longer trigger for the remainder of the current driving cycle.
The alarm siren may also be disabled to provide only visual alarms. Alarms may also be globally disabled so that both visual and audible alarms are disabled.
An alarm may also be assigned to trouble codes or pending codes. Should a trouble code or pending code become posted while driving, an alarm immediately occurs. This can aid in the diagnosis of intermittent problems.