Vktech 6 Inch 150 mm Carbon Fiber Composites LCD Vernier Digital Guage Caliper Made of extra strong carbon fiber composites, lightweight and durable Measureing range: 0-150mm (0-6 inches). Resolution: 0.1mm (0.01 inch) Maximum measuring speed: 1.5m/sec (60inch/sec) Measuring system: Non-contact linear CAP measuring system