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Ultrasonic Thickness Gauges
State of the art ultrasonic technology allows you to obtain ultra precise thickness measurements and store them to memory. This digital tester is capable of reading wall thickness down to 0.010" with a super high adjustable resolution of up to 0.0001". This dynamic sonic gauge is designed to measure the thickness of metallic and non-metallic materials such as steel, aluminum, titanium, plastics, ceramics, glass and any other good ultrasonic wage conductor as long as it has parallel top and bottom surfaces. The UTG-2650 will accurately display readings in either inch or millimeter after a simple calibration to a known thickness or sound velocity.


  Model No. UTG-2650
Display type 4-digit LCD w/Back Light
Display Resolution Inch: 0.01", 0.001" or 0.0001" (selectable)
Metric: 0.1mm or 0.001mm (selectable)
Measuring Range Standard Mode: 0.010" - 0.787" (steel)
Accuracy +/-0.0002" (0.005mm) if thickness < 3mm
+/-0.002" (0.05mm) if thickness < 20mm
Sound velocity range 3280-32805 ft/s (1000-9999m/s) Adjustable
Upper/Lower Limit Preset Alarm Yes
Operating temperature 32-122 degrees F
Refresh Frequency 4MHz up to 25MHz
Memory 500 Test Values
Output N/A
Power supply AA alkaline batteries (2pc)
Battery life Approx. 200 hours (w/backlight off)
Power consumption Working current is less than 3V
Dimensions 5.86” x 2.87” x 1.25” (149 x 73 x 32mm)
Weight 5.6oz (160g)

UTG-2650 comes complete with Certificate of Calibration, Operation Manual and Custom Carry Case.


The use of Ultrasonic non-destructive testing (NDT) to check material properties such as thickness measurement, is now extensively used in all facets of industry. The ability to gauge thickness measurement without requiring access to both sides of the test piece, offers this technology a multitude of possible applications. Metals, plastics, ceramics, glass and other materials can easily be measured by portable ultrasonic thickness gauges with a common accuracy of.001”.

Ultrasonic thickness gauges measure the thickness of a part by measuring the time sound travels from the transducer through the material to the back end of a part, and then measures the time of reflection back to the transducer. The gauge then calculates the thickness based on the velocity of sound through the material being tested.

A broad variety of piezoelectric transducers, operating at given frequencies are utilized to generate sound when excited. Typically, a 5mhz frequency is standard on all Phase II Ultrasonic Thickness Gauges. Optional transducers are always available for a myriad of applications.

The direct contact method of pulse/echo type ultrasonic thickness gauges requires use of a couplant. Propylene Glycol is common, but many other substances can be used.

Easy to configure and use, many gauges today have the ability to retain memory, output to printers, PC’s, and handheld portable devices. With the combination of an easy menu driven gauge and the data in memory, technician/operators have a world of technology at their fingertips to obtain highly accurate and cost effective measurements for all types of thickness applications.
Ultrasonic Thickness Gauge Accessories Ultrasonic Thickness Guage UTG-2000/2020 Calibration Guide
Principles of Ultrasonic Thickness Gauge Measurement Ultrasonic Velocity Chart
Ultrasonic Thickness Gauge Application Page NIST Links
    ASTM Links
  • China Electronics Fair-Shenzhen - Booth 1B157 - Shenzhen Convention & Exhibition Center - April 9, 2010-April 11, 2010
  • IMTS 2010 - Booth E-5217 - Lakeside Center, McCormick Place, Chicago IL USA - September 13, 2010 - September 18, 2010