Features: High precise measurement, distance ranging, data storage. The measuring ranges is up to 50meters, accurate to millimeter level, and the area and volumes can be automatically calculated, which can be connection to the phone APP fot data export. Architects, engineers, decorators, real estates developers and other professional who need to measure the distance. Housing survey, interior designs, land survey, construction site survey and other occasion that require accurate distance measurement. Whether it's for indoor designs, land surveying, or construction site mapping, this lasers distance meter ensures accurate and efficient measurement result everytimes. Specifications: Component:ABS Size:Approx.10.2x4.6x2.4cm/4.01x1.81x0.94inch Color:Black Package Includes: 1pcs Lasers Distance Measurer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.