MMTS (meteorology)

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A Maximum Minimum Temperature System or MMTS is a temperature recording system that keeps track of the maximum and minimum temperatures that have occurred over some given time period.[1]

The earliest, and still perhaps most familiar, form is the Maximum minimum thermometer invented by James Six in 1782.

Today a typical MMTS is a thermistor.[2] This may be read locally or can transmit its results electronically.


  1. ^ "Measuring Temperature". National Atmospheric and Oceanic Administration (USA). 2006-08-09. Retrieved 2008-05-24. 
  2. ^ "U.S. National Report on Systematic Observations for Climate" (PDF). NOAA. Retrieved 2008-05-25. 

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