1The electronic measurement range is 0~300mm/12in with an accuracy of 0.3mm/0.01in for precise readings in all your measurement needs. 2This measuring tool has a quickchange button that changes between inch/metric units, with reset key to facilitate measurement and use. 3Aerospace engineering grade carbon, when measuring valuable items such as jewelry or 3D printing, it will not cause damage to the measured object. 4Long jaw design, which can meet most of the measurement needs. Home DIY and professional use are both highly recommended. 5It has an extralarge LCD screen for easy and clear readings for faster efficiency and accuracy on the job or at the worksite. Item Type: Digital CaliperMaterial: Carbon Color: As shown in the picture Measuring Range: 0~300mm/12in Accuracy: 0.3mm/0.01in Working Temperature: 0~40 Storage Temperature: -20~70 Battery Type: Button battery Battery Model: LR44 (Not included) Number of Batteries: 1pcs 1 x Digital Caliper (Battery Not Included)