General Tools and Instruments AQ150 - Manual (Page 9)

OPERATING INSTRUCTIONS
DISPLAYING REAL-TIME TEMPERATURE
To display the ambient temperature at the display unit, press the Ext/Int button until INT appears at
the right of the readout. To display the temperature sensed by the probe, press the Ext/Int
button
until EXT replaces INT.
DISPLAYING MAX AND MIN TEMPERATURES
Pressing the Max/Min button briefly (for less than 1 second) cycles through three readings: maximum,
minimum and real-time temperatures. After the unit is activated, the initial readout is the real-time
EXT temperature.
Press the Max/Min button once and the display will switch to the highest (maximum) temperature
recorded since the unit’s battery was installed or since the memory was reset. The term MAX will
appear, flashing, at the left of the display.
Press the Max/Min button again and the display will switch to the lowest (minimum) temperature
recorded since the unit’s battery was installed or since the memory was reset. The term MIN will
appear, flashing, at the left of the display.
Press the Max/Min button a third time and the display will return to showing the real-time INT or
EXT temperature.
To reset the Max/Min memory, press the Max/Min button and hold it for at least 1 second.
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