Digital Ultrasonic Thickness Gauge Meter Tester 1-225mm Tool for Metal Steel PVC
1x WT100A Digital Ultrasonic Thickness Gauge. range: 1000 to 9999 m/s. When the given thickness over 20mm,the accuracy is +/-0.5%; when the given thickness less than 20mm,the accuracy is +/-0.5mm/H 100%.