High Precision: Accuracy less than 2 mm; 3 units m / in / ft and 2 reference points, faster and more accurate than a tape measure. USB Rechargeable: The USB cable is included, so you can say goodbye to batteries. 5 Measuring Modes: Single and continuous distances (min / max), area, volume, Pythagoras for height and triangular area. Durable Tool: The product is made of high-strength ABS plastic with IP54 waterproof and dustproof grade, widely used in home, construction and industries, especially in large rooms, apartments, construction sites, buildings, factories, warehouses, etc. Read Clearly: Backlit display and support data clearing function; Compact size and lightweight, you can put it in your pocket after use.