Pythagoras Modes

Accuracy Notice

Indirect measurements are always less accurate than direct measurements. Use a tripod for best results.

When to Use Indirect Measurement

Use Pythagoras modes when you cannot measure directly because:

• An obstacle blocks the laser beam
• No reflective target surface is available
• You need to measure heights without access

Important Guidelines

1. Right angles required — The Pythagorean theorem only works with right triangles
2. Same starting point — All measurements in a sequence must start from the exact same position
3. Legs < Hypotenuse — If legs exceed the hypotenuse, “Err” will display
4. Use a tripod — Highly recommended for accurate indirect measurements

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Pythagoras 2-Point

Calculate a distance using two measurements.

Enter mode: Press Mode 3 times until the 2-point icon appears.

1. Measure the first line (hypotenuse) — press A
2. Rotate to measure the second line — press A
3. The calculated distance appears in the summary line

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Indirect Length with Angle

Get horizontal and vertical distances plus the hypotenuse using the built-in angle sensor.

Enter mode: Press Mode 4 times until the angle icon appears.

The X angle displays in real-time at the top of the screen.

1. Aim at the target point
2. Press A to measure

The device calculates and displays:

• Hypotenuse (direct line)
• Vertical distance
• Horizontal distance

Tip

This mode is excellent for measuring building heights while standing at a known distance.

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Pythagoras 3-Point (Mode A)

For situations requiring three measurements to calculate the result.

Enter mode: Press Mode 5 times.

1. Measure the first line — press A
2. Measure the second line — press A
3. The calculated distance appears in the summary line

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Pythagoras 3-Point (Mode B)

Alternative 3-point configuration for different measurement scenarios.

Enter mode: Press Mode 6 times.

1. Measure the first line — press A
2. Measure the second line — press A
3. The calculated distance appears in the summary line

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Mode Quick Reference

Mode	Button Presses	Measurements	Use Case
Pythagoras 2-point	3	2	Basic indirect
Angle + Distance	4	1	Heights with angle
Pythagoras 3-point A	5	2	Complex indirect
Pythagoras 3-point B	6	2	Alternative config

Tips for Accuracy

• Always keep the reference point (back of device) at the exact same position for all measurements in a sequence
• Use a tripod mount for stability
• Verify your right angles are truly 90°
• Take multiple measurements and average them for critical work
• Direct measurement is always preferred when possible