The EAS Universal Sensor Input provides the ability to read any 0-5 volt signal and translate that signal a meaningful value for display on the CTS3 platform. This means you can add custom temperature, pressure, Air/Fuel and even Travel/Position gauges to your Insight, Evolution, and Juice w/Attitude! You'll need this harness in order to run our pressure or temp sensors. Each 98605 kit will allow you to plug in two inputs for monitoring.