The Engine Vitals Digital Meter is a high tech solution to monitor your most vital data on a brilliant COLOR display which is easy to install on the surface of your dash, and easy to wire up to supplied senders. There are 3 screen/sender configurations for you to select upon adding to cart. 1. Oil OR Water Temp with OIL OR Fuel Pressure, +Voltage 2. Oil OR Water Temp with Boost Pressure +Voltage 3. Oil OR Water Temp with Exhaust gas temp +Voltage. If you wanted to display all types of readings above you would buy 3 meters, all configured differently. Its impossible to display two temps or two pressures on one meter, and its impossible to mix Pressure & Boost & EGT on one meter, but if you wanted to display (the most critical combination) water temp with oil pressure on one meter and (second most important) oil temp with fuel pressure or boost or EGT on the second meter then you can get the job done with two displays. Checkout the gallery for the instruction manual and installation guide as well as our instagram or facebook video demos.