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2. Installing and replacing batteries
Open the battery cover, insert two 1.5V AAA
batteries. Observe the polarity of the installation.
Then close the cover.
If you do not use the rangender for a long time,
remove the batteries to avoid battery leakage and
damage to the device.
3. Getting started
Turning on. To turn on, press button for
1second. The display backlight automatically turns
o after 15 seconds of inactivity of the device.
Measurements.When on, press button once to
turn on the laser. Press the same button again to take
the measurement. At the end of the measurement,
the laser will turn o automatically. Long press of
button will switch the device to continuous
distance measurement mode. Symbol on the
display shows the strength of the reected signal,
the fewer segments in this symbol - the weaker the
signal.
Change of measurement reference point. Long
(more than 2 seconds) pressing of button with
the device switched on switches the measurement
reference point. When the device is switched on, the
reference point is set by default - from the lower end
of the device, that is, the measurement result includes
the length of the device itself. When changing the
reference point to the front end of the instrument,
the result does not include the instrument length.