LRB 25,000 LRB 25000 are long range binocular laser rangefinders capable of measuring distance up to 25 km accordingly utilizing time-of-flight delay algorithm and a single-pulse laser technology. The binoculars operate on 1540 nanometer lasers and are Class 1 eye-safe. Result of measurement is displayed through the eyepiece and can be transferred for processing via computer port (RS232). LRB 25000 can be remotely activated and operated. These instruments have comprehensive digital display and variable range settings. Compact and lightweight, designed to withstand to withstand wide range of environmental conditions, these binoculars are beneficial for topography, geodesy, marine navigation, highway and power line construction, airborne altimetry and location, meteorology and other professional activities.   Features First/Last target selection High fog/smoke penetration Invisible to night vision devices Specifications Laser type Wavelength Pulse energy Pulse duration at ½ width Photo detector type Measuring range Accuracy Gating range Gating accuracy Laser beam divergence (at 80% of power level) Pulse repetition rate Dioptric adjustment Magnification Field of view Visual channel objective lens aperture Operating temperature range Protective filter against non eye-safe lasers Tripod socket ¼" Interface Power supply Dimensions Weight   Erbium Glass 1.54 mkm 5-8 mJ ~30 ns Ge avalanche 60-25,000 m ± 5 m 60-4,000 20 m 1.0 mrad 0.15 Hz ± 4 7.5x 5.5° 43 mm -30°C … +60°C Optional Optional RS 232 DC 12V / NiCd battery 220x200x90 mm 1.9 kg