UEi Test Instruments AQM4 - Manual (Page 7)

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CO² (CARBON DIOXIDE)
Press to switch the mode to CO². CO²
concentration will display in ppm on primary
display (Fig. 4). The lower display shows the
real time clock.
AIR, (DP, WBT, TA ) TEMPERATURES
Press to switch to temperature display
(Fig. 5). In the AQM4, dew point temperature
and wet bulb temperature are also available
by repeated pressing of (Fig 6). The
lower display shows the real time clock.
HUMIDITY
Press to switch to humidity display
(Fig. 7). The lower display shows the real
time clock.
CO (CARBON MONOXIDE)
Press to switch the mode to CO. CO
concentration will display in ppm on primary
display (Fig. 8). The lower display shows the
real time clock.