GM130 Digital Ultrasonic Thickness Gauge 1-300mm Steel Width Testing Monitor ; Features: 1.;Auto calibration to assure the accuracy. 2.;Sound measurement: with a given thickness to measure the sound to improve accuracy. 3.;Preset 12 sound velocities for different material. 4.;Coupling status indication, thickness alarm setup,;backlight display,;low battery indication;and auto power off;function. 5.;12 kinds thickness measurement data store and recall. 6. /Imperial can be selected. ; Specification: Condition: 100% Model: GM130 Measuring Range:;1.00-300.0mm(steel) Accuracy:;±(1%H+0.1mm) H denotes the measured thickness Working Frequency:;5MHz Resolution:;0.01mm(1.00 to 99.99mm), 0.1mm(100 to 300.0mm) Minimum Limit for Tube Measuring(steel):;15*2.0mm, 20*3.0mm ;; Sound Range:;1000-9999m/s Thickness: ≤20mm,;accuracy of : ±1% Operating Environment: Operating Temperature:;0-40° Temperature of Workpiece:;
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a