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Hardness Tester, VM-6360 Digital Vibration Meter Vibrometer Gauge Tester 10Hz-10kHz For Metal Steel Aluminum Copper Plastic(VM-6360 software)
Acceleration 10Hz-1KHz 0.1-200m/s 20.1-400m/s 10Hz-10KHz 0.3-200ft/s 0.3-1312ft/s Velocity 10Hz-1KHz 0.1-8.0inch/s 0.1-400mm/s 0.004-16.0inch Displacement 10Hz-1KHz 0.001-2.0mm 0.001-4.0mm 0.04-80mil 0.04-160 mil Accuracy:
https://www.bizrate.co.uk/homehardware/hardness-tester-vm-6360-digital-vibration-oid40496140933.html