<b>Multiple Features of Measurement</b> <br>Auto calculate datas for continuous,subtraction measurements.Instantlly get values from area,volume,trangle.It's a sharp measuring tool for your work and helpful tool for family. <br><br><b>Backlit LCD Display</b> <br>Allow you to measure in dark areas and easy to see datas on screen. <br><b>20 Sets Measuring Data Memory</b> <br>Auto save 20 Sets Measuring records.It quickly improves your work efficiency,saving time on recording.<br><b>Units Conversion</b><br>Auto Converse units between meter,ft,inch.it all can be done by single pressing button. <br><b>Specifications</b> <br>Measuring Distance:196ft <br>Measuring accuracy: ±0.005 feet <br>Measuring units: M/in/ft <br>Historical memory: 20 <br>Auto laser off: 30 seconds <br>Auto power off: 180 seconds, Power on/off <br>4 Line Display with Backlight, <br>Distance Measurement <br>Continuous Measurement(Min/Max) <br>Area Measurement <br>Volume Measurement <br>Pythagorean Method-Three Points <br>Pythagorean Method-Two Points <br>Size:4.7"×1.9"×1.0" <br>Weight:4 ounces <br>Laser class: class 2 <br>Laser wavelength:635nm,<1mW <br><br> <b>Package:</b> <br>Mileseey Laser Measuring Device <br>2×1.5V AAA Battery <br>User Manual