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Keep a Keen Eye on the Borderl 

Ultimate Border Guard Binoculars with 20x Magnification.

Easy mounting on tripod or pier;
Comfortable design of control system;
High quality of image in the whole of field of view;
Reliability and ease of use.

PNB-4 is a flagship binocular observation device equipped with range-finding reticle to quickly and easily estimate ranges to an object. PNB-4 magnification level provides high quality of image in the whole of field of view helping not to lose track movement of sighted targets.

The reticle and scales are illuminated for surveillance in adverse lighting conditions such as pre-dawn or twilight or even at night if the object is still visible. The device can be operated at ambient temperatures from -40°C to + 50°C and relative humidity up to 98% at +25°C.
Main characteristics
Magnification, x
Field of view, deg
Exit pupil, mm
Diopter adjustment, d
-5 to +14
Measurement range, vertical angles, deg
35 to +85
Measurement range, horizontal angles, deg
Overall dimensions without tripod, mm
Weight without tripod, kg