Exhaust gas temperature (EGT) data is very useful while tuning. It can quickly alert you to dangerous air/fuel ratios before a catastrophe occurs. MegaSquirt EMS has the ability to log, display, and react to critical EGT values, but not without a little extra hardware.

SymTech Labs Internal EGT Interface Modules are compatible with MS1, MS2, and MS3 MegaSquirt EMS systems. The modules were designed to be mounted directly inside MegaSquirt EMS enclosures. They are available in single- or multi-channel configurations, and they have a user-selectable range of either 0-1000?C or 0-1250?C.

Installation is simple! Each module requires a connection to 12V power and ground, plus three connections per channel: two for each EGT probe/thermocouple and one for each channel output. Modules can be mounted using their integrated mounting holes, or the included adhesive foam backing.

EGT probes/thermocouples are not included. All K-type thermocouples (chromel/alumel pair) are compatible. Without CAN-based I/O expanders, MS1 systems support a maximum of one channel, MS2/MS3 systems support up to two channels, and MS3+MS3X systems support up to five channels.