Maretron’s TMP100 measures the temperature for up to 6 temperature probes and reports the information over an NMEA 2000 network. The TMP100 supports up to 4 thermistor probes and 2 high temperature thermocouple probes. Optional thermistor probes (-20 deg. C to 80 deg. C or -4 deg. F to 176 deg. F) cover a wide range of applications including cabin air temperature, engine room air temperature, refrigerator/freezer temperature, under bolt temperature (inverters, charges, pumps, motors, etc), tank temperatures (live well bait, hot water, etc) and air duct temperatures. The optimal thermocouple probes (0 deg. C to 900 deg. C or 32 deg. F to 1652 deg. F) are used to measure Exhaust Gas Temperature (EGT) as part of a comprehensive fuel management system.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Quick Guide (pdf)Owner’s Manual (pdf)