Accurate measurement -- Measuring range: 0-150mm; resolution: 0.1mm; accuracy: 0.2mm. Perfect and precise measuring tool for home or DIY. Please choose stainless steel digital caliper for more accurate measurement. Large LCD Display & Gift -- High quality digital caliper, the large, easy-to-read LCD display helps you get accurate results quickly and easily, automatically turns on the digital caliper when you slide the rail and automatically turns off after 5 minutes of no use. Battery powered, comes with a pre-installed battery and 2 spare batteries for gift. 4 Measuring Modes -- This digital caliper can be used to measure inner and outer diameter, depth and pitch with 2 sets jaws and a probe. Made of high-quality plastic carbon fiber composite, this digital caliper is durable and portable. Two conversion units and zero adjustment function -- One button quickly changes between two measurement modes: inch and millimeter . The intelligent design allows you to set zero with a simple press of a button and start a new measurement at any point on the scale, ideal for differential measuring, meeting your needs.