Measurement Range: 50m Accuracy: +/- 2mm Data Storage: 50 Power Supply: 3x AAA Laser Class: Class 2 Size: 114 x 50 x 27mm – Innovative Patented Green Distance Meter with High Accuracy – Visibility up to 100m Package Included: BT-B50M Laser Range Finder (Red) 50M – 1 unit Batteries AAA – 3 units Portable Bag – 1 units Hand Strap – 1