NIGHT VISION GOGGLES Brand: AGM or Equal Model # AGM NVG-50 3AL-1 or Equal Weight: 1.5lbs maximum Maximum size of 4.5" x 4.75" x 3 " Resolution: 64-72 lp/mm Image Intensifier Tube: Gen 3 Auto-Gated "Level 1" Field of View cleanness: Gen 3 IIT 3AIT Lens System: 19mm; F/1.26 Field of View: 51° minimum Focus Range: 0.25m to infinity Magnification Range: 1x Eye Relief: 17 mm minimum Diopter Adjustment: -6 to +2 dpt LED Indicators: *Low Battery, IR on, Excessive Light Conditions* Infrared Illuminator Manual Gain Control Bright Light Cut-Off Automatic Shut-Off System Battery Type: One CR123A (3V) or One AA (1.5V) non-rechargeable Operating Battery Life: Up to 20 hours at 20°C minimum Storage Temperature Range: -50°C to +50°C Protection Level: IP67 minimum Waterproof Handheld