Nikon Laser Range Finder 550 Measurement range 10-500m/11-550 yd. Distance display Every 0.5m/yd. (shorter than 100m/yd.) Every 1.0m/yd. (100m/yd. and over) Target system Distant target priority system Finder Magnification 6x Effective objective diameter 21mm Actual field of view 6.0° Exit pupil 3.5mm Eye relief 18.2mm Dimensions (L x H x W) 130 x 69 x 37mm Weight (excluding battery) 180g Power source CR2 lithium battery x 1 (DC 3V) Auto power shutoff function equipped (after 8 sec.) Safety Class 1M Laser product (EN/IEC60825-1:2007) EMC FCC Part15 SubPartB class B, CE:EMC directive, C-tick, VCCI class B Environment RoHS, WEEE The specifications of the product may not be achieved depending on the target object’s shape, surface texture and nature, and/or weather conditions.