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Incidentally, Diesel Manor sells both the "conventional" ISSPRO EV series, as well as the new Performax series.
Performax is a complete gauge "System", using a controller which may be mounted under the hood (nice and close to where the sensors connect). One controller (called an ESP, or Electronic Signal Processor) will work with up to 17 gauges. There are just 3 common wires with connect from the controller to all of the gauges, which also allows you to move the gauges around once you have installed them. I like to keep sensors installed for more gauges than I have space for, then swap the gauge heads in and out as I need a particular gauge.
If you have any questions, feel free to PM or email me.
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