ISSPRO's EV² Series matches your OEM gauges to a "T." LED lighting matches. Colors match. Fonts match. As a long time supplier to truck OEMs, we understand the importance of finely tuned design details. ISSPRO's EV² has all the bells and whistles. Microprocessor-controlled stepper motor movements. LED back lighting. Precision senders. 270?ø degree sweep. All electric gauges. ISSPRO knows diesel. ISSPRO has been engineering and building diesel instrumentation for over 60 years. In addition to aftermarket performance gauge systems, ISSPRO custom designs diesel instrumentation for OEM customers. All ISSPRO gauges include the items necessary for typical installation. Pyrometers include lead wire and thermocouple with weather pack connectors. Boost and Temperature gauges include the sensors and wire harness to connect from the sensor to the gauge. No Amplifier boxes necessary. A lighting harness is also available as an EV² accessory to adjust gauge lighting levels.