Functions: Temperature minus 4 degree F to 122 degree F (minus 20 degree C to 50 degree C), Relative Humidity 0.1% to 99.9%, Wet bulb 5 degree F to 121.8 degree F (minus 15 degree C to 49.9 degree C), Dew point minus 4 degree F to 121.8 degree F (minus 20 degree C to 49.9 degree C), Enthalpy minus 1 BTU/lb.
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