stenciled on it faces you. Then replace both covers and
secure them by turning them counterclockwise.
When replacing a battery, you may need to slide the tip of a
pin under it to dislodge it. Each compartment is equipped with
a pin slot (at the four o’clock) position for that purpose.
OPERATING INSTRUCTIONS
MAKING BASIC MEASUREMENTS
To make a quick measurement with the IRT105, point the
front of the unit at a surface, press the Meas. (measure)
button, hold it for at least one second, and then release the
button. The temperature of the surface will be displayed
instantly on the LCD in Celsius or Fahrenheit units. Note that
when you release the Meas. (measure) button the reading will
be held for 15 seconds and then disappear as the IRT
automatically powers off (to extend battery life).
By default, the laser pointer turns on when the Meas.
(measure) button is pressed and turns off when the button is
released. The laser’s default state is indicated by the
presence or absence of the Laser Enabled icon (callout B of
Fig. 2).
To change the laser’s default state from on to off, first
power off the IRT by pressing and holding the Mode button.
Then power on the unit in a special way by pressing and
holding the Mode and Meas. buttons at the same time. Note
that after doing this the Laser Enabled icon will no longer
appear on the top line of the display.
To return the laser’s default state to on, simply press and
hold the Meas. button as you would to make a quick
measurement. Note that after doing so the Laser Enabled icon
will reappear on the top line of the display.
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