Laser Rangefinders – Do They Differ for Short and Long Distances?

The use of laser has increased in today’s tech-driven world for providing accurate measurement of distances. From surveying land to aiding golfers and hunters, laser-based devices offer quick and highly accurate distance measurements. At this point you may question if same devices are used for measuring long distances and short distances.

Laser rangefinders have long been used for measuring distances, but it is to note that not all devices are meant for measuring long distances.

Before getting into details, it is crucial to first understand how laser rangefinders work:

Laser rangefinders work on the same principle: they emit a laser beam toward a target and measure the time it takes for the reflected beam to return, measuring time-of-fight. While the basic principle remains same, rangefinders differ in design, optics, and processing power based on whether they are intended for short-range or long-range distance measuring.

Measurement range

Laser rangefinders meant for short-range distance measuring are optimized for measurements typically under 100–200 meters. They are meant to provide accuracy in small environments, such as construction projects, interior design, or DIY tasks.

Long-distance rangefinders, on the other hand, can measure distances extending several kilometers. They are vital in more complex applications like surveying, forestry, military targeting, or mountaineering.

Accuracy and resolution

Short-range devices often provide millimeter-level accuracy, essential for precise layouts, alignment, or small-scale engineering. Besides, long-range devices are meant for large scale tasks and provide accuracy in measuring distances up to several kilometers.

Optics and laser power

Laser range finders meant for measuring long-range and short-range distances differ in optics and laser power as well. Long-distance models require more powerful beams and superior optics to ensure the signal can travel farther and return reliably, even in outdoor conditions with light interference.

ERDI Tech specializes in laser rangefinders for short and long-distance measurements, as required for specific industrial applications.