The RIEGL FG21 series is a product line of extremely compact, durable, and high performance handheld instruments for distance measurements. Protected by thick rubber, it is ideal for use in harsh environments. The 6x30 sighting optics enables looking at almost any arbitrary target.
At the push of the trigger button, the instrument emits pulses of eyesafe laser light toward the object. The distance to the object is calculated based on the time taken for the reflected light to return. Distance is displayed in large, easily legible digits in the sighting optics typically in less than one second. A powerful short-range suppression feature facilitates reliable use in bad weather conditions such as heavy rain, snowfall, or fog as well as measurements through a window.