Precision measurements Internal, external, height and depth dimensions can be measured easily and accurately. Measuring range: 0 - 6 inch / 0 - 150 mm; Accuracy: 0.004 inch / 0.1mm 2 modes A button allows you to quickly change between two measurement modes: inch and millimeter. Zero adjustment The Caliper slides easily along the beam, adjusting the zero at any position in the measuring range. Easy to read Easy to read precise result on the extra large LCD screen Easy to use Press the button to turn on / off , or just pull the ruler to turn it on, and it will automatically turn off without use in 5 minutes. Specifications: Condition: 100% brand new Material: plastic Color: black, silver, blue (optional) Measuring range: 0 ~ 150mm Unit measuring range: mm, inch Accuracy: 0.1mm Measuring error: 0.2mm Battery: 1 * button cell LR44 1.5 V (not included) Length: approx. 23.8cm / 9.37in Width: approx. 7.7cm / 3.03in Weight: approx. 80g Package included: 1 * Digital caliper