Operating principle: ULTROSonIC
Measuring range(metric/imperial): 1.5-200mm, 0.06-8inch
Materials measured: Any hard materials, including steel, cast iron, aluminum, red copper, brass, zinc, quartz glass, polyethylene, PVC, gray cast iron, nodular cast iron and other materials
Sound velocity: 500-9000m/s
Transducer Calibration block: Included
Resolution: 0.1mm
Accuracy: ± (0.5%n+0.1)
Power supply: 4x1.5V AA(UM-3)battery
Battery indicator: Low battery indicator
Dimensions: 160x68x32mm
Weight: 208g (not including battery)