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Laser Rangefinders
  • LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A
  • LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A
  • LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A
  • LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A
  • LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A
  • LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A
LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A

LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A

$17.45-$35.25/ Piece|5 Piece/Pieces(Min. Order)
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LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Precision Distance Measurement: The UNI-T LM series laser distance meters (LM50A/LM70A/LM100A/LM120A) deliver millimeter-level accuracy (±2.0mm) across ranges up to 120 meters, enabling precise measurements for diverse applications.
  • Multi-Function Calculations: Supports distance, area, volume, and Pythagorean theorem calculations, streamlining tasks like space planning, construction layout, and engineering surveys.
  • User-Friendly Interface: Features an LCD display for simultaneous readings, programmable buttons (DIST, FUNC, UNIT, LOG), and a level indicator for horizontal alignment, ensuring intuitive operation.

Key features

  • 1. Durable Material Construction

    • With a rugged plastic body, withstand harsh outdoor conditions better than lightweight alternatives*. The compact, ergonomic design ensures portability for on-site use.

  • 2. Intuitive Interactive Design

    • With multi-function buttons (DIST, FUNC, LOG), switch between measurement modes and log data effortlessly. The clear LCD display reduces setup time by 30% compared to manual tools*.

  • 3. Millimeter-Level Precision

    • With ±2.0mm accuracy, achieve measurements 50% more precise than standard models*, minimizing errors in construction, engineering, or home projects.

  • 4. Versatile Scenario Solutions

    • With a 50m range and Pythagorean calculation functions, tackle both home layouts and professional surveys. Ideal for tasks requiring continuous operation, such as room planning or site surveys.

  • 5. Enhanced Usability Features

    • With a built-in level indicator and data-logging capability, ensure horizontal alignment and streamline workflow analysis. These features outperform basic models lacking integrated tools*.

Product details

LM 50m 70m 100m 120m Laser Distance Meter Millimeter Accuracy LM50A LM70A LM100A LM120A

The UNI-T LM50A/LM70A/LM100A/LM120A series of laser distance meters delivers millimeter-level accuracy (±2.0mm) across ranges from 50m to 120m. Designed for professionals and DIY enthusiasts, these compact, durable devices feature a user-friendly LCD display, intuitive buttons, and advanced functions like Pythagorean calculations and data logging. Their rugged plastic construction and built-in level indicator ensure reliability in outdoor and indoor environments.

Technical specifications

FeatureSpecificationApplication Scenario
Measurement Accuracy±2.0mmPrecision engineering, construction, and surveying
Measurement Range50m, 70m, 100m, 120mVersatile for small spaces to large-scale projects
MaterialDurable plastic (red/black)Withstands rugged outdoor use and drops
DisplayBacklit LCD with multi-readClear visibility in low-light conditions
FunctionsDistance, area, volume, PythagoreanQuick calculations for complex layouts
Data LoggingUp to 100 measurementsRecord and analyze data for project planning
Battery IndicatorLED status displayAvoid unexpected shutdown during critical tasks

Customization guide

Adjust the measurement range (50m to 120m) to match project requirements. For specialized needs, request enhanced data logging capacity or customizable unit preferences (metric/Imperial).

Get inspired

With millimeter accuracy and extended ranges up to 120m, these laser meters empower precise measurements for everything from home renovations to large-scale construction. Their intuitive design and rugged build ensure reliability in any environment.

Choose your model

ParameterBase Model (LM50A)Advanced Model (LM70A)Pro Model (LM120A)
Measurement Range50m70m120m
Data Logging Capacity50 entries100 entries200 entries
Additional FunctionsBasic (distance)Area/VolumePythagorean + Area/Volume

Supplier's note

  1. Technical Breakthroughs:

    • Millimeter Accuracy: ±2.0mm precision ensures error-free construction and surveying.
    • Extended Range: The LM120A’s 120m capability outperforms industry benchmarks for large-scale projects.
    • Enhanced Data Logging: The Pro model’s 200-entry log streamlines complex project documentation.

  2. Version Selection Guide:

    • Home Users/DIYers: Opt for the Base Model (LM50A) for small spaces and simple tasks.
    • Professionals: The Advanced Model (LM70A) suits mid-sized projects requiring area/volume calculations.
    • Enterprise/Construction Teams: The Pro Model (LM120A) excels in large-scale environments, pairing its 120m range with robust data logging for seamless workflow integration.

With the Pro version’s 120m range—20% longer than competing models—you can measure expansive sites with confidence. Its Pythagorean function, combined with millimeter accuracy, eliminates guesswork in triangulated measurements. For teams needing long-term data tracking, the 200-entry log reduces manual errors and speeds up reporting.

Frequently asked questions

  • Which UNI-T laser distance meter model (LM50A/LM70A/LM100A/LM120A) suits small home projects?

  • How do I clean the laser lens of the UNI-T LM50A to maintain accuracy?

  • Is the UNI-T LM50A’s ±2.0mm accuracy NIST-certified for professional use?

  • Can the UNI-T LM120A measure distances accurately in outdoor construction environments?

  • Does the UNI-T LM70A store multiple measurements for later review?

  • Can the UNI-T laser distance meter calculate room volumes automatically?

  • Is the UNI-T LM100A’s durability suitable for heavy-duty industrial use?

  • Does the UNI-T LM50A support metric and imperial unit conversions?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Measurement RangeConstruction surveys, large layoutsIndustry: 50m (common) ▲ Base: 50m ▲▲▲ Advanced: 120m (extends coverage 140%)Advanced handles expansive sites without resetsBase limited to 50m for large projects
AccuracyPrecision engineering, blueprintsIndustry: ±3mm (typical) ▲▲▲ Base/Advanced: ±2mm (ISO 16331-1 compliant)Ensures exact measurements for critical tasksHigher cost vs lower-accuracy competitors
Data LoggingInventory tracking, documentationIndustry: No logging ▲▲▲ Base/Advanced: Logs 100+ readings (streamlines records)Eliminates manual errorsRequires software for export (not included)
Multi-FunctionalityComplex projects, DIY renovationsIndustry: Distance only ▲▲▲ Base/Advanced: Area, volume, Pythagoras (all-in-one)Reduces need for multiple toolsSteeper learning curve for advanced functions
DurabilityOutdoor work, rugged environmentsIndustry: Standard plastic (scratch-prone) ▲▲▲ Base/Advanced: Reinforced polymer (IEC 60529 IP54)Survives drops and dust exposureSlightly heavier than basic models
PortabilityField surveys, home projectsIndustry: 220g+ ▲▲▲ Base/Advanced: 180g (lighter than 220g competitors)Easier to carry all daySmaller screen may strain eyes in bright light

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