National Geographic 260NE manual Indoor/Outdoor Wireless H eat Index Thermometer

Indoor/Outdoor

Wireless Heat Index Thermometer

Instruction Manual

Monitor:

A.Heat Stress Index Scale

B.Battery Icon

C.Heat Index/Humidex

D.Signal Detection Icon

E. Outdoor Temperature

F. Outdoor Humidity

G.Indoor Temperature

1.Max/Min Button

2.Heat Index/Humidex Button

3.Clear Button

4.Re-sync Button

5.C/F Button

6.Reset Button

Remote Sensor:

7.Select Button

8.ºC/ºF Button

9.Reset Button

1.0 Heat Index

The monitor will display the Heat Index reading once it has been powered up.

Heat index is a combination of outdoor temperature and outdoor humidity into one number to reflect perceived temperature. It is a measure of how the air “feels”. As humidity increases, heat index goes up and the sensation of heat increases.

See Appendix A for Heat Index Chart

IMPORTANT: Heat index is relevant when temperature is in the range of 26.6°C to 56.1C, and outdoor humidity is 35% or above, outside of this range no measurement is available. When the outdoor temperature is below or above the range, there is no corresponding Heat Index value, the display will show dashes (--°C).

2.0 Humidex

Press the Heat Index/Humidex button to show Humidex readings on the monitor. Humidex is the same indication of how the air “feels” with the same principles of heat index, however, it uses the Canadian standard calculation which is generally a higher value than the Heat Index.

See Appendix B for Humidex Chart

IMPORTANT: Humidex is relevant when temperature is in the range of 21°C (69.8°F) to 43°C (109.4°F) and outdoor humidity is 20% or above, outside of this range no measurement is available or displayed.

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