Prokit's Industries NT-6580 - Manual (Page 8)

(2) When measuring right-angle side (Distance 2 in Figure E), user should
ensure laser beam is right-angled to the target line.
(3) User can press to delete any measured length and then press
to re-measure.
Indirect Measurement: Pythagoras Three Points
As shown in Figure (F), there is another function to measure the height of
the building.
Figure (F)
(1) Press four times, the symbol
appears on display.
(2) Press to activate laser and aim at the
point which is to be measured.
(3) Press again to take the first
measurement, and again to take the second and third measurement.
(4) The height of building, first, second and third distance value will be
seen on display.
Note:
(1) The device will automatically determine the longer distance as triangle’s
hypotenuse, and shorter distance as right-angle side.
(2) When measuring right-angle side (Distance 2 in Figure E), user should
ensure laser beam is right-angled to the target line.
(3) User can press to delete any measured length and then press
to re-measure.
Tilt Measurement
Press to activate tilt sensor, the symbol appears on display.
The tilt is continuously shown as ° or % depending on the setting.
Press to record the tilt on display, and take a distance measurement.
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