Magnification: 7x Objective lens diameter: 24 mm Exit Pupil: 3.4 mm Field of view: 347′ @ 1,000 yards Range: 10 to 1,000 yards Equivalent Horizontal Range: 10 to 600 yards Coating: AquaDura Waterproof: yes, to 3.28′ Meter / Yard toggle: yes Power supply: 1@ 3v / CR 2 lithium cell Battery Life: -3,000 measurements at 68 degree F Weight: 6.5 oz. Dimensions: 4.4″ x 2.9″ x 1.3″ (W x H x D)