RH300-en-GB_v1.7 9/16
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Display Description
1.
Relative Humidity %
2.
T1 (Air Temp)
3. T1-T2
4. Dew
Point
5. Wet
Bulb
6. T2-Dew
Point
7. °C/°F
8.
T2 (Type K probe)
9. Maximum
10. Minimum
11. Low
Battery/Hold
Operation
Open the Protective Sensor Cap
Twist the protective sensor cap, located at the top of the
meter, counter-clockwise a quarter of a turn to expose
the sensor
Turn Power ON or OFF
Press the ON/OFF button to turn power on or off. The meter will perform a short self-test
when turned on.
Taking Air Temperature and Humidity Measurements
1. Hold the probe in the area to be tested.
2. Allow adequate time for readings to stabilize.
3. The Relative Humidity measurement appears in the top
display.
4. Pressing the
T/DP/T1
button toggles the lower left
display between T1 (Air Temperature) and DP
(Dew point) measurements.
5. The lower right display will read WB (Wet Bulb) temperature.
Note:
If the external Type K probe is not connected, T1-T2, T2-DP, and T2
measurements will not be displayed.
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