Automobile Multimeter for EGT, Boost, 24VDC

This meter is to be powered by 24V DC. It is for trucks that have 24 V power systems.

This digital automobile gauge can be used to measure temperature, pressure and other important parameters such as battery voltage and air/fuel ratio. Its bright LED display is easy to read from a distance compared to many dim LCD type digital gauges. The programmable alarm will turn on a blue LED in the front panel to get the driver's attention if the temperature/pressure is above the setting point. It will also close a relay output port that can be used to turn on a buzzer, shut off the fuel, or turn on a cooling fan. The meter stores the peak temperature/pressure with time stamps that can be checked later. It can also operate in the peak holding mode so that only the maximum value is displayed. The brightness of the LED display can be synchronized with headlights. When the headlight is turned on at night, the display will be dimmed by the illumination signal. It can also be dimmed directly on the key pad. Developed based on industrial grade instruments, this four digits gauge offers up to 10 times the resolution and accuracy of most 3 digits gauges on the market.  The gauge also includes a cold junction compensation circuit to further reduce the temperature drift when a thermocouple sensor is used. Its compact size (24 x 48 mm or 1 x 2") takes up less space than a 52 mm round gauge. (Please note, each gauge can only be set to measure one type of parameter at a time. It can't measure multiple parameters simultaneously).

For EGT measurement, the meter will work with all EGT sensors on the market, grounded or ungrounded. There is no input impendence matching requirement. It can display the temperature in either Celsius or Fahrenheit. The temperature measurement is cold junction compensated for high accuracy. Very few EGT gauges on the market have the cold junction compensation circuit, and the ones that cost several times more than this gauge.

For boost pressure measurement, the meter will work with all MAP sensors as long as its pressure/output voltage relationship is known. It can display the pressure in either Bar, PSI, or user defined units with high resolution. However, it will not display the pressure with two different types of units on one scale, such as PSI for pressure range but inHg for vacuum range.

For water/oil temperature measurement, the meter can display from -199 °C to 250 °C (or -199 °F to 500 °F) with 1 degree accuracy when used with our RTD sensor. It will also work with our liquid tight thermocouple based sensor. In addition, it can work with a VDO 150 °C (300 °F) sensor with a limited display range (50-150°C, VDO sensor can only be displayed in Celsius with this gauge).

For water/oil pressure measurement, the meter can work with either old fashioned resistive pressure sensors or the modern pressure transducers with linear voltage output. The meter offers a regulated 5V DC output for the power supply of the pressure transducer.

For air/fuel ratio measurement, it can be used to display either air/fuel ratio or lambda when interfaced with Innovate Motorsports' LC-1/LC-2 wideband oxygen sensor controller. Please note, the meter cannot work as a standalone AFR with the oxygen sensor unless you are using a controller.

The color of the LED display can be supplied in amber, red, green or blue. The default is red. When ordering, please select the color of the LED at the top of this page.

Specification:

Click here for instruction manual.
Click here for EGT sensor installation guide.
Click here to download Pressure Sensor Application Guide.
Click here for water/oil temperature sensor application guide.
Click here to download Voltage Measurement Application Guide.
Click here to download Current Measurement Application Guide.
Click here for engine fuel/oil pressure sensor installation guide.
Click here for resistive pressure sensor installtion guide.
Click here for LC-1/LC-2 Wideband Oxygen Sensor set up.
Click here to download Guide for Boost Gauge Installation.