Ermenrich LG900 Site Laser Rangefinder

The Ermenrich LG900 Site Laser Rangefinder is a compact and lightweight device that is capable of measuring within 5–900m. It can determine the heights of objects, angles, direct and horizontal distances as well as the speed of moving targets – for the latter function, the device has a separate unit of measurement km/h in addition to the standard meters and yards. The rangefinder uses a class 1 laser with a 905nm wavelength – in the infrared range, which is invisible to the human eye and relatively safe for vision. However, you should not rely on luck – it is important to remember the technical safety rules so as not to accidentally cause harm to human health!

The Ermenrich LG900 rangefinder has a fixed magnification of 6.5x, an aperture of 21.8 mm, an eyepiece diameter of 15mm, and an exit pupil of 3.8mm. These parameters are comfortable when using the device for those who wear glasses and those who don’t. For more precise adjustment to the features of vision, the device provides a diopter correction of ±3D. Information about the measurement results is displayed on the internal easy-to-read LCD screen.

The rangefinder body has a light degree of protection against impacts, dust, and water. The device is powered by a built-in 750mAh lithium-ion battery, which takes only 3–4 hours to fully charge. There is a function for the automatic shutdown of the device after 12 seconds of inactivity. This helps save battery power and protect the internal components from wear. The battery life is at least 20,000 measurements, which means that the Ermenrich LG900 can serve the user for many years.

Note: IR illumination (radiation from the device) during operation may be visible to photo and video cameras as well as similar electronic devices.

Key features:

• Measurements in the range of 5m to 900m with an average error of ±1m


• Determining heights, angles, distances, and speeds


• ±3D diopter correction for users with visual impairments


• Light dust, water, and impact protection – ideal for home use


• Long-lasting built-in 750mAh 3.7V Li-ion battery


• Class 1 laser with a 905nm wavelength (invisible to the eye IR spectrum)

The kit includes:

• Laser rangefinder


• USB Type-C cable


• Cleaning wipe


• Hand strap


• Spring carabiner


• Pouch


• User manual and warranty card