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 sensors.
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 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 right display along
with the date and time.
4. Air Temperature appears in the top left display.
5. Wet Bulb is in the lower left display.
6. Pressing the
[T1
T/DP
SEL
]
button toggles the top left display
between Air temperature, T1 temperature, Air-T1, and DP
(Dew Point).
7. Pressing the
[T2
▲
WB
]
button toggles the lower left display between
WB (Wet Bulb), T1-T2, T2, and T1-DP (Dew Point).
SETUP
When the meter is off, press and hold the
[ON/OFF
SET
]
button for more
than 2 seconds to enter setup mode. Prnt will appear on the display.
3.
Selecting temperature units of measure (C/F)
Momentarily press the
[T1
T/DP
SEL
]
button until “unit” appears in the display.
Press the
[MEM]
button to toggle between C or F.
Press the
[T2
▲
WB
]
button to confirm the setting and return to normal
operation.
1.
Setting the Date/Time (24 hour clock)
Press the
[T1
T/DP
SEL
]
button to select Year, Month, Day, Hour and Minute in
sequence.
