Check the listing for details. Digital Ultrasonic Thickness Gauge Tester 0.039 to 11.81 in For Metal Cast Iron. Condition: New. Listed at 101.99 USD. Fast & Accurate: The ultrasonic thickness gauge measuring ranges from 0.039 to 11.81 in/1 to 300mm, Resolution: 0.01mm. you can get accurate (±0.5%H+0.05mm) readings in inch or mm in 0.5 seconds. Adjustable Sound Velocity: You can be easily changed sound velocity from 1000 to 9999m/s to get the most accurate results. it continually displays/updates average, min/max, and number of readings while measuring, and also you can set a high/low thickness limit alarm. Multi-Functional: 2.4″ HD color screen display with backlit & 5 selectable color display, storage up to 1500 data, statistic view, calibration, auto-off, and restores factory settings function. Versatile Uses: Widely used for measuring Metal and Nonmetal materials, Steel, Aluminum, Copper, Brass, Zinc, Plastic, PVC, Glass, Ceramics, P.