Made of strong plastic carbon fiber compositesTwo-way measurement, internal and externalLinear capacitive measurement methodsZero setting at any positionWith simple, LCD displayDescription: Minimum scale to read is 0.01 inch An ideal tool for a broad range of industrial and automotive applications Measuring Range: 0-150 mm / 0-6 inch Resolution: 0.1 mm / 0.01 inch Repeatability: 0.1 mm / 0.01 inch Maximum Measuring Speed: 1.5 m / sec or 60 inch / sec Display: LCD screen : LR44/AG13/SR44 1.5V size: 245 x 80 x 15mm LCD display size: 62 x3 0 x 15mm Package included: 1 x Electronic Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.