Leica DISTO™ D2 Laser Distance Meter

Overview

The Leica DISTO™ D2 is a laser distance meter operating with a class 2 laser. Refer to the Technical Data section for its scope of use.

Device Layout:

• 1 Display: Shows measurements and settings.
• 2 ON/Measure Button: Powers the device on and initiates measurements.
• 3 Add Button: Used for adding measurements.
• 4 Functions Button: Accesses various measurement functions.
• 5 Measuring Reference: Indicates the point from which measurements are taken (front or rear of the device).
• 6 Clear/OFF Button: Clears the last input or turns the device off with a long press.
• 7 Memory/Timer Button: Accesses stored measurements or timer functions.
• 8 Bluetooth® Smart Button: Manages Bluetooth connectivity.
• 9 Subtract Button: Used for subtracting measurements.

Technical Data

* Favourable conditions: white, diffuse reflecting target, low background illumination, moderate temperatures.
** Unfavourable conditions: low reflectivity targets, high background illumination, extreme temperatures.
*** Tolerances apply from 0.05 m to 5 m with 95% confidence. Deterioration may occur at distances above 5 m.

Instrument Set-up

Introduction

Read the safety instructions and this user manual carefully before first use. Ensure all users understand and adhere to the provided directions.

Symbols Used:

• ⚠️WARNING: Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.
• ⚠️CAUTION: Indicates a potentially hazardous situation that, if not avoided, may result in minor injury and/or appreciable material, financial, and environmental damage.
• ℹ️Important: Paragraphs that must be followed for correct and efficient use of the product.

Insert Batteries

Use high-quality Alkaline batteries. Replace batteries when the battery symbol flashes. The device requires 2 x AAA batteries.

Switching ON/OFF

Press the ON/DIST button briefly to switch the device ON. Press and hold the CLEAR/OFF button for 2 seconds to switch the device OFF.

Clear Function

• A short press on CLEAR/OFF undoes the last action.
• A longer press (2x) exits the current function and returns to the default operation mode.

Message Codes

If a message code (e.g., "i 255") appears, consult the 'Message Codes' section for details.

Adjusting Measuring Reference

The device can measure from the front or the rear. To set the measuring reference to the front, press and hold the ON/DIST button for 2 seconds. The standard setting is measuring from the rear.

Multifunctional Endpiece

The orientation of the endpiece is automatically detected, and the zero point is adjusted accordingly. This is useful for measuring from corners or edges.

Unit Setting

Press the '+' and '-' buttons simultaneously for 2 seconds to cycle through available units such as meters (m), feet (ft), and inches (in).

Beep Setting

Press the FUNC and Bluetooth® buttons simultaneously for 2 seconds to toggle the beep sound ON or OFF.

Operations

Measuring Single Distance

1. Aim the active laser at the target surface.
2. Press the ON/DIST button.
3. The measured distance (e.g., 8.532 m) is displayed.

ℹ️ Measuring time may increase on dark surfaces. Measuring errors can occur on colourless liquids, glass, styrofoam, or highly reflective surfaces.

Permanent / Minimum-Maximum Measuring

Press and hold the ON/DIST button for 2 seconds to start continuous measurement. The device displays the minimum and maximum measured values. This is useful for measuring room diagonals or horizontal distances. Press ON/DIST again to stop.

Add / Subtract

1. Perform an initial measurement (e.g., 7.332 m).
2. Press the '+' button to add the next measurement to the previous one, or press the '-' button to subtract it. The result is shown in the main line.

This function can also be used for adding or subtracting areas or volumes. Press DIST to display the final result.

Area Calculation

1. Aim the laser at the first target point.
2. Aim the laser at the second target point.
3. Press the FUNC button.
4. Aim the laser at the third target point (for wall area).
5. Press the FUNC button again to get the final area result (e.g., 24.352 m²).

The Painter function allows adding or subtracting wall lengths during area measurement by using the '+' or '-' buttons.

Volume Calculation

1. Aim the laser at the first target point (length).
2. Aim the laser at the second target point (width).
3. Aim the laser at the third target point (height).
4. Press the FUNC button.

The calculated volume (e.g., 80.208 m³) and wall area are displayed.

Memory (Last 10 Results)

The last 10 measurement results are stored. Press the memory/navigation buttons (+/-) to scroll through these values.

Delete Memory

Press the FUNC and Bluetooth® buttons simultaneously for 2 seconds to completely delete all stored measurements.

Timer (Automatic Release)

Set the delay for automatic release by pressing the '+' button (adjustable from 5 to 60 seconds). Once the button is released, a countdown appears, which is useful for precise aiming and avoiding device shake during measurement.

Pythagoras (2-point)

Measure two points to calculate a third dimension (e.g., height):

1. Aim the laser at the upper point.
2. Aim the laser at the lower point.
3. Press the FUNC button.

The result is displayed. Holding the measuring key for 2 seconds activates Minimum or Maximum measurement.

Pythagoras (3-point)

Measure three points to calculate a third dimension:

1. Aim the laser at the upper point.
2. Aim the laser at the rectangular point.
3. Aim the laser at the lower point.
4. Press the FUNC button.

The result is displayed. Holding the measuring key for 2 seconds activates Minimum or Maximum measurement.

Stake Out Function

1. Set the desired stake-out distance using the +/- buttons (e.g., 0.625 m).
2. Press the ON/DIST button to approve the value and start measurement.
3. Move the device slowly along the stake-out line. The device will beep when the target distance is reached. The distance to the next stake-out point is displayed.

ℹ️ When approaching a stake-out point to less than 0.1 m, the instrument starts to beep. The function can be stopped by pressing the CLEAR/OFF button.

Bluetooth® Smart

Activate or deactivate Bluetooth® by pressing the Bluetooth® button. Measurement values are automatically transferred to connected devices (smartphones, tablets, laptops) via apps like DISTO™ sketch. Bluetooth® switches off when the device is turned off. The device uses Bluetooth® standard V4.0 and is compatible with Bluetooth® Smart Ready devices.

ℹ️ Leica provides no warranty or support for free DISTO™ software. Use of third-party software is at the user's own risk.

Message Codes

* If other message codes are displayed frequently, even after switching the instrument off and on, please contact your dealer.

Warranty

Warranty under PROTECT by Leica Geosystems

Lifetime Manufacturer's Warranty: Coverage for the entire usage time of the product under PROTECT, according to Leica Geosystems International Limited Warranty and PROTECT General Terms & Conditions available at www.leica-geosystems.com. Includes free repair or replacement for defects due to materials or workmanship.

3 Years No Cost: Additional services for products under PROTECT that become defective under normal use conditions, as described in the user manual, at no additional charge.

To qualify for the '3 Years No Cost' period, the product must be registered at myworld.leica-geosystems.com within 8 weeks of purchase. If not registered, a '2 years No Cost' period applies.

Safety Instructions

Symbols Used:

• ⚠️WARNING: Indicates a potentially hazardous situation or unintended use which, if not avoided, will result in death or serious injury.
• ⚠️CAUTION: Indicates a potentially hazardous situation or unintended use which, if not avoided, may result in minor injury and/or appreciable material, financial, and environmental damage.
• ℹ️Important: Paragraphs that must be adhered to for technically correct and efficient product use.

Prohibited Use:

• Using the product without proper instruction.
• Using outside the stated limits.
• Deactivating safety systems or removing labels.
• Opening the equipment with tools (e.g., screwdrivers).
• Using accessories not expressly approved by the manufacturer.
• Modifying or converting the product.
• Deliberately dazzling third parties, even in the dark.
• Inadequate safeguards at the surveying site (e.g., on roads, construction sites).
• Irresponsible behaviour on scaffolding, ladders, or near operating machinery.
• Aiming directly into the sun.

Hazards in Use:

• ⚠️WARNING: Erroneous measurements may occur if the instrument is defective, dropped, misused, or modified. Perform periodic test measurements, especially after abnormal use or before/during/after important measurements.
• ⚠️CAUTION: Never attempt to repair the product yourself. Contact a local dealer for any damage.
• ⚠️WARNING: Unauthorized changes or modifications may void the user's authority to operate the equipment.

Disposal:

⚠️CAUTION: Do not dispose of batteries with household waste. Use designated collection points. Dispose of the product according to national and local regulations. Product-specific treatment information can be downloaded from the homepage.

FCC Statement (Applicable in U.S.):

This equipment complies with FCC Part 15 limits for Class B digital instruments, providing reasonable protection against harmful interference. It generates, uses, and can radiate radio frequency energy. If interference occurs, try reorienting the antenna, increasing separation, connecting to a different circuit, or consulting a dealer/technician.

Operation is subject to two conditions: the instrument must not cause harmful interference, and it must accept any interference received.

This instrument also complies with Industry Canada license-exempt RSS standard(s) under similar conditions.

Use of the Product with Bluetooth®:

⚠️WARNING: Electromagnetic radiation can disturb other equipment (e.g., medical devices, aircraft) and affect humans/animals. While conforming to standards, the possibility of harm cannot be entirely excluded.

Precautions:

• Do not use near petrol stations, chemical plants, or potentially explosive atmospheres.
• Do not use near medical equipment.
• Do not use in airplanes.
• Avoid prolonged close proximity to your body.

Laser Classification:

The Leica DISTO™ D2 is a Class 2 laser product (IEC60825-1:2014). Do not stare into the laser beam or direct it at others unnecessarily. Eye protection is usually afforded by natural blink reflexes.

⚠️WARNING: Looking directly into the beam with optical aids (binoculars, telescopes) can be hazardous.

⚠️CAUTION: Looking into the laser beam may be hazardous to the eyes.

Technical Laser Specifications:

• Wavelength: 620-690 nm
• Maximum radiant output power: < 1 mW
• Pulse duration: > 400 ps
• Pulse repetition frequency: 320 MHz
• Beam divergence: 0.16 x 0.6 mrad

Labelling:

Subject to change (drawings, descriptions, and technical data) without prior notice.