Smtni Portable Handle Digital Laser Distance Meter 40m, High Accuracy and Wide Measuring Range with Bubble Level Large Backlit LCDMeasuring up to 40m(0.16 to 131ft) [High Accuracy] :It can wide measuring range up from0.05 to 40m. [Quick Measurement]: Measue distance, area and volume with one button operation. [Bubble level]:Bubble level equipped as a spirit level tool. [Widely Used]: in construction and industries, especially in large areas. [IP54 protection]:laser distance measuring tool with IP54 protection, Auto/Manual power off. The Smtni Laser Measure 2 bubble levels, which provides more precise measurement compared One bubble is on horizontal, another one is on level. lets you get more precise measuring data compared to one bubble, Fast measurement speed can improve your work efficieny Based on measured Length, width and height, gets you smart volume and area calculations. Small Body fits in hand perfectly, gives you convenient operation.