The aculon al11 is extremely compact and easily fits in a pocket though small in size it is reliable and easy to use equipped with nikons distant target priority software it displays the farthest target among multiple results with a single measurement it allows for instant and accurate measurement of distances up to 500 metres550 yards in 1 metreyard increments high quality 6x magnification and multilayer coated glass ensure a clear and bright view weighing just 125 grams it is a bare