Keypad
• AUTO POWER OFF Press to turn the meter ON or OFF
• MAX/MIN (for Airflow/Air Velocity) Used to record and store the highest, lowest and average
airflow or velocity readings.
◄ (LEFT) also serves as change decimal point button in AREA mode
• UNITS Press to select the mode of operation. In FLOW mode, the meter displays air volume. In
VELOCITY mode, the meter displays air speed.
▲(UP) also serves as increase number button in AREA mode.
• AVG Used to Average multiple readings in FLOW or VELOCITY mode. Up to 20 readings can be
averaged.
• HOLD Press to freeze the displayed reading. Press again to unlock display. This button also
functions as the ►RIGHT scroll button in AREA mode and RECALL mode.
• AREA Press and hold to manually enter the area of a duct in CFM or CMM mode
• NEXT In AREA mode, used to select memory locations 1-8.
• Press to turn the backlight on/off
• MAX/MIN (Temperature) Used to record and store the highest, lowest readings for air
temperature.
• °C °F HOLD (Temperature) Press to freeze the displayed temperature reading. Press again to
unlock the display. Press and hold for 3 seconds to switch between °C and °F. Meter will beep
twice to indicate change.
The Battery compartment is located on the back of the instrument. The rubber protective jacket
must be removed from the meter to access the compartment.
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