The 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. 
 
The TMP100 can measure:
Cabin temperature
Engine room temperature
Under bolt temperature (Inverters, chargers, pumps, etc.)
Refrigerator / freezer temperature
Tank temperatures (Live well bait, hot water, etc.)
Air duct temperature
Exhaust gas temperature