Makita LD050P Laser Distance Measure, 164' Measuring distance operating range up to 164' for moderate distance capacity Provides top-class accuracy of +/- 5/64" for maximum precision Provides 7 measurement functions for increased versatility of applications Provides both standard and metric units of measurement Bright 635 nm class II (&lt;1mw) laser for best-in-class visibility in moderate ambient light environment