3
LCD DISPLAY
TWA Time weighted average(
STEL hort-term exposure limit
(15 minutes weighted
MIN/MAX Minimum/Maximun readings
Low battery indicator
DP
Dew point temperature
AIR Air temperature
WBT
Wet bulb temperature
% Unit of relative humidity
o
E (C/F) Celsius/Fahrenheit
AVG/ftm/m/s Vain icons in these models
8 hours)
S
average)
HOLD Readings are freezed unchanged
%
O
TWA
STEL
HOLD
ftm
m/s
CO
2
CO
2
concentration
in ppm
Relative
humidity in %
Air temp.
Dew point
Wet bulb
temp. in
o
C or F
o
Symbols
Turns on and off the meter.
Enters setup mode.
Sets as non-sleep mode with .
SET
CAL
Esc
DP/WBT
N
X
M /AV
Exits setup page/mode.
Enters CO calibration with .
2
Enters RH calibration with .
Freezes the current readings.
Cancels data hold function.
Activates or cancels the backlight.
Selects unit or increases value in setup.
Selects AIR, DP, WBT temps display.
Selects unit or decreases value in setup.
Activates MIN,MAX,STEL,TWA function.
Saves and finishes settings.
DP/WBT
KEYPAD
