TOOLCRAFT LDM 70 P Mode D'emploi page 48

With three reference points
1. Push the button FUNC (L) five times. A triangle split in two is shown
on the left side of the display to indicate indirect measurement with
three reference points.
2. Now measure the three necessary lengths. For the correct order,
see the following illustration or follow the flashing segments of the
indicator for indirect measurement with three reference points.
3. Activate the target laser (B) by pushing the button ON (C).
4. Push the button ON to measure the first side length. The
measurement is shown in the upper line.
5. Activate the target laser by pushing the button ON.
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