Why Is There A Difference Between The So-called Safe And Unsafe For Laser Rangefinders

As the name implies, laser rangefinders use lasers as the main working substance to work. At present, the working substances of handheld laser rangefinders on the market mainly include the following: semiconductor lasers with working wavelengths of 905 nm and 1540 nm .yag laser with a working wavelength of 1064 nm. The wavelength of 1064 nm is harmful to human skin and eyes. Especially if the eyes are accidentally exposed to the 1064 nm wavelength laser. The damage to the eyes may be permanent. So. In foreign countries, in handheld laser rangefinders, the 1064-nanometer laser is completely banned. In China, some manufacturers also produce 1064-nanometer laser rangefinders.

For the 905nm and 1540nm laser rangefinders. We call it safe". For the 1064nm laser rangefinder. Because it is potentially harmful to the human body. So we call it unsafe "of.