the binoculars-rangefinder is a compact light-weight device, designed for measurement of distances, which: determines polar coordinates of ob-jects and converts polar coordinates into square ones; determines points of view against known check reference points; observes locality and separate ob-jects; finds their bearings on the ground. the lrb 20,000 is widely applicable in construction, repair and geological survey jobs, pipeline laying (through water obstacles including); in navigation (sea and river) when arranging navigation notices, and pilot aging in narrow waters; when measuring flight altitude from helicopters or balloons; at ordnance fire correction. it is equipped with goniometer which affords accurate measurements of horizontal and magnetic azimuth, vertical angles. the binoculars-rangefinder gives additional information on an ob-ject presence in cut-off interval and more than one ob-ject on sighting line.
興旺寶