Usage Tips:Features 1. Quality: The body of the digital caliper is constructed using finely polished stainless steel with a knurled thumb roller and locking screw that ensures smooth sliding and accurate positioning when taking measurements. 2. Precisions: The electronic measurement range is 0-6 inch/0-150 mm with a resolution of 0.01 mm and an accuracy of0.05 mm for precise readings in all your measurement needs. 3. Large Screen: Each digital LCD caliper has an extra-large LCD screen for easy and clear readings for faster efficiency and accuracy on the jobs or at the worksite. 4. Multifunction: This measuring tool has a quick-change button that changes between three measuring modes: inch, fraction, and millimeter to make conversion a snap during measurement. 5. Versatile: Calibrate to measure inside, outside, depth and step with two sets of jaws and a probe as a vernier caliper. Specification Material: Plastic, Stainless steel Color: Black Size: 26 3 2 cm Weight: 240 g Measure Range: 0-6 inches/150mm Accuracy:0.05 Resolution: 0.01 mm Measuring speed: 1.5m/s Working condition temperature: 0-40 degrees Celsius Humidity: 80 percent Battery mode: one LR44 1.5 v cell battery Package Include: 1 Electronic Digital Caliper"