night vision monocular, compact and good-looking portable hand held night vision devices.excellent optical systems. Night vision monocularBright and sharp imagesMagnification:5xObjective lens diameter(mm):50Field of view:12.5°Focusing range:1.0m-infinityDiopter adjustment:-4--+4diopterDetective range: 220--175MPower supply:3VBattery type: CR-123 3V(one) Weight:613gOperating temperature: -30°C--+ ...