Makita's LD050P is compact, handy and specifically designed for indoor applications. Shortcut keys for addition, subtraction, area and volume calculation make measuring fast and reliable. The last 5 measurements are also automatically stored. The laser dot is clearly visible up to 50 meters. You can always see your targeting point, even if the target object is in a hard to access area.Battery durability: up to 3000 measurements.Pythagoras: 2-point and 3-point.Line Accuracy (at 30feet): Plus/- 5/64 Inch.Smallest Unit Of Measure: 1/16 Inch.New angle measuring method.Single Measurement.Minimum and Maximum Measurements.Addition and Subtraction of measurements.Area and Volume Calculation.Auto laser switch off after 90 seconds.Auto power switch-off after 180 seconds.Measuring distance operating range up to 164feet for moderate distance capacity.Provides top-class accuracy.Provides both standard and metric units of measurement.Bright 635 nm class II (<1mw) laser for best-in-class visibility in moderate ambient light environment.Battery run time delivers up to 5,000 measurements for continuous work and increased productivity.Records history of 5 measurements for convenience.Auto power-off function automatically shuts the device off for increased run time performance.Dust and water resistance with IP 54 rating for increased durability.Simplified user interface button and screen for convenience.Compact and lightweight design for convenient storage and increased portability.