Maretron Temperature Module Colour:Default Ultrasonic or sound waves are

Ultrasonic or sound waves are transmitted via the TLM100 mounted at the top of the tank and the flight times of the sound waves to and from the fluid are measured much like a depth sensor

For enhanced night visibility you have a choice of red/black green/black or the normal night mode colour scheme along with a dimmer control

It’s a simple idea but very effective

Padded carry handle plus adjustable shoulder strap

Maretron Temperature Module Colour:Default Ultrasonic or sound waves areTMP100 Temperature Monitor. 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 ( 20C to 80C or 4F to 176F) cover a wide range of applications including cabin air temperature engine room air temperature refrigerator freezer temperature under bolt temperature