Nikon's Monarch Gold Laser Rangefinders feature Nikon's original digital measurement process that provides lighting-fast measurements with pinpoint 1/2 yard precision up to 550 yards and consistent one-yard accurate readings out to 1,200 yards. Also features Nikon's Tru-Target Ranging System with First Target Priority and Distant Target Priority modes. Also has a selectable backlighting feature in the bright LCD display, scanning capability, eyeglass friendly 7-power multicoated optics with focusing diopter, and a 34mm laser pulse receiver. Guaranteed waterproof and fogproof. Tripod adaptable. Includes CR2 lithium battery.