The LDM-40A is a compact 40m laser distance meter designed for fast and reliable indoor measurements. With an accuracy of ±2.0mm, it helps users measure distance, area, volume, and indirect height with greater efficiency than a conventional tape measure.
Multiple functions—including addition and subtraction, continuous tracking, Pythagorean measurement, and maximum/minimum measurement—make the LDM-40A suitable for renovation, interior finishing, furniture installation, and property inspection. Its HD self-luminous LCD display provides clear readings, while the soft-grip housing offers comfortable handling on busy job sites.
The device can store up to 99 groups of measurement data and supports metric and imperial units. Automatic laser and power shutoff functions help extend battery life during daily use.
Key Features
- Measuring range from 0.05m to 40m
- High measurement accuracy of ±2.0mm
- Distance, area, volume, and Pythagorean measurement
- Continuous tracking with maximum and minimum values
- Addition and subtraction calculation
- 99-group measurement data storage
- Metric and imperial unit conversion
- HD self-luminous LCD display
- Automatic laser shutoff after 30 seconds
- Automatic power shutoff after 180 seconds
- Low-battery indicator and error-code display
- Compact, lightweight body with soft-grip housing
- More than 5,000 measurements per battery cycle
Product Specifications
| Specification | LDM-40A |
|---|---|
| Product Type | Handheld laser distance meter |
| Measuring Range | 0.05–40m |
| Accuracy | ±2.0mm |
| Laser Grade | Class II, <1mW |
| Laser Type | 620–690nm |
| Area Measurement | Yes |
| Volume Measurement | Yes |
| Pythagorean Measurement | Yes |
| Addition/Subtraction | Yes |
| Tracking Measurement | Yes |
| Maximum/Minimum Measurement | Yes |
| Unit Conversion | Yes |
| Distance Units | m, ft, in |
| Area Units | m², ft², in² |
| Volume Units | m³, ft³, in³ |
| Data Clear | Yes |
| Error Code Display | Yes |
| Data Storage | 99 groups |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 65°C |
| Display | HD self-luminous LCD |
| Angle Measurement | Yes |
| Auto Laser Shutoff | 30 seconds |
| Auto Power Shutoff | 180 seconds |
| Low-Battery Indicator | Yes |
| Housing | Soft-grip case |
| Battery Working Time | More than 5,000 measurements |
| Battery | 2 × AAA 1.5V alkaline batteries |
| Product Size | 112 × 45 × 25.5mm |
| Product Weight | 80g |
Application Scenarios
The LDM-40A is ideal for:
- Home renovation and interior decoration
- Furniture and cabinet installation
- Flooring, wallpaper, and paint estimation
- Room dimension measurement
- Window, door, and curtain installation
- Real estate and property inspection
- DIY projects and routine household measurements
