EASY-TO-USE: Simple, user-friendly layout features two-button operation: one for measuring ... easy to carry and fits in your pocket. Class 2 Laser Product - <1mW, 635nm ...
A new way to gauge distance using lasers can measure lengths of more than 100 kilometres to within a thousandth of the width of a human hair, and could be used to make better space telescopes.
Measures in meters, feet inches, or inches only Easy to use: Simple, one button operation press button once to begin measuring. The GLM20 is small enough to fit in any pocket Live measuring ...