Instantly measuring up to 100m (330ft.) * 180 Degree inclination sensor for leveling, height tracking and indirect horizontal distance measurements when line-of-sight is blocked by an obstacle * Corner angle feature allows you to determine the angle of a corner * Compass provides a "heading" for your distance measurements * Full Pythagoras function for height measurements * The most advanced laser technology for distance measurement * Simple one-button operation to instantly measure distance between two objects * Easy addition and subtraction function * Pythagoras function indirectly measures height via two other measurements * 3 year warranty