National Geographic IN102TOP - Manual (Page 6)

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Note: Most weather networks display barometric pressure in kPa. This unit measures
pressure in mb/hPa and inHg. It is easiest to convert kPa to inHg, and then once inputted
as inHg the unit will automatically show the pressure in both units. Use the formula below
to convert pressure in kPa to pressure in inHg
inHg = kPa x 0.295
exp.
101.5 kPa = 29.94 inHg (101.5 x 0.295)
Indoor Thermometer Function
1. A built-in sensor measures temperature and shows the measured value on the display.
The readout from the temperature sensor can also be switched between Celsius (°C)
and Fahrenheit (°F).
2. Press the [+/°C/°F] button to select either Celsius (°C) or Fahrenheit (°F).
3. The sensor is capable of measuring temperatures between -10°C to 50°C
(14°F to 122°F).
Indoor Relative Humidity
1. A built-in sensor measures humidity and shows the measured value on the display.
2. The unit is capable of measuring relative humidity ranging within 20%RH to 95%RH.
Maximum and Minimum
1. The max./min. record function automatically stores the maximum and minimum values
for the temperature, relative humidity, and pressure in the memory.
2. To display them, press the [MEMORY] button to rotate through the maximum and
minimum current values. The respective MAX or MIN indicator will be displayed.
3. To clear the memory, hold down the memory button for three seconds. The maximum
and minimum values of temperature and relative humidity will be erased.
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CLOCK +/- 30 seconds a month at normal operating temperature
CALENDAR SYSTEM Auto Calendar pre-programmed from 2000 to 2050
BATTERY LIFE Approximately one year
BATTERY Two AA size batteries (Type: R6P-SUM-3)