AIM Motorsport MyChron 2T double temperature patch lead are suitable for the AIM 2T (2 temperature) models including MyChron6, MyChron5 S, MyChron5 and older MyChron4's. These patch leads are used for connecting different temperature sensors to the dash. Connects to the 3 pin (712) TEMP port on the back of the MyChron dash.Double TC (Mignon) Plugs: Suitable for fitting an Exhaust Gas Temperature (EGT) and an Underplug Temperature sensor (or 2 x Exhaust Gas Temperature (EGT) or 2 x Underplug Temperature sensors).1 x TC (Mignon) Plug and 1 x TR (719) Plug: Suitable for fitting 1 x Exhaust Gas Temperature (EGT) or 1 Underplug Temperature sensor and 1 x Water Temperature sensor. This is the standard lead as supplied with 2T MyChron's.Double TR (719) Plugs: Suitable for fitting 2 x Water Temperature sensors.