KECK RAPID 1 Red Dot features motion sensor technology that automatically activates when movement is detected and deactivates the illuminated reticule after five minutes of inactivity. RAPID 1 Magnification Stated：1X Exit Pupil Dia：22 mm Parallax setting：100YDS / 1′ Click Value I Click：1 /2MOA Dot size：2MOA Windage Elevation (Up Down)：>140MOA Windage Elevation (Right Left): < 140MOA Gear：2（NV）+10 Shake awake：YES Housing Material：Aircraft Grade Aluminum 6061T6 Battery life： Up to 400 hours on highest setting. Up to 50,000 hours on lower settings. Water Proof：IP67 Shock Proof：1200g Working temperature：-30℃ to +60℃(-86℉ to +140℉)