The Edge EAS Expandable EGT Probe with Lead allows you to monitor exhaust gas temperatures with your Edge CS, CTS, CS2 and CTS3. The Expandable designed allows you to add optional expandable accessories from Edge such as pressure and temp sensors. This redesigned version of the original EAS Starter Kit EGT Probe, is built with a 15" lead so that the EGT Probe can be easily replaced or removed without needing to replace the cable or other electronics.