Lutron Electronics EM-1910, Operation Manual, Page: 7 / 16

Heat index
Unit Range Resolution Accuracy
℃ 0 to 100.0 ℃ 0.1 ℃ ±2.0 ℃
℉ 32 to 212 ℉ 0.1 ℉ ±3.6 ℉
Pleas refer to http://en.wikipedia.org/wiki/Heat_index
Type K/J thermometer
Sensor Resolution Range Accuracy
Type
Type K 0.1
℃
-50.0 to 1300.0
℃
± ( 0.4 % + 0.5
℃
)
-50.1 to -100.0
℃
± ( 0.4 % + 1
℃
)
0.1
℉
-58.0 to 2372.0
℉
± ( 0.4 % + 1
℉
)
-58.1 to -148.0
℉
± ( 0.4 % + 1.8
℉
)
Effects of the heat index (shade values)
Celsius Fahrenheit Notes
27–32 ℃ 80–90 ℉ Caution :
Fatigue is possible with prolonged exposure
and activity. Continuing activity could result in
heat cramps
32–41 ℃ 90–105 ℉ Extreme caution :
Heat cramps, and heat exhaustion are possible.
Continuing activity could result in heat stroke
41–54 ℃ 105–130 ℉ Danger :
Heat cramps, and heat exhaustion are likely ;
heat stroke is probable with continued activity
over 54 ℃ over 130 ℉ Extreme danger :
Heat stroke is imminent
Note :
Exposure to full sunshine can increase heat index values by up to
8 ℃ ( 14℉ ).
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