Measuring range (metric/imperial): 1.5-200mm,0.06-8inch
Operating principle: ULTROSONIC
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
Lower limit steel pipes: ф15x2.0mm, ф20x3.0mm determined by the transducer
Calibration block: included
Resolution: 0.1mm
Accuracy: ±(0.5%n+0.1)
RS232C interface: with RS232C
Power supply: 4x1.5V AAA (UM-4)battery
Battery indicator: low battery indicator
Operating conditions:0-+45℃(32℉-104℉),≤90%RH
Dimensions: 120x62x30mm
Weight: 164g(not including battery)     
Including : Case, Manual, certificate calibration, 1 year Guarantee.