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  • Ultrasonic Thickness Gauge - QTG IV

Ultrasonic Thickness Gauge - QTG IV

Your Price:
0.57 LBS
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Product Description

The QTG IV Ultrasonic Thickness Gauge is the new and improved unit with A and B scan gauge, besides E-E (Thru-Paint) function. The instrument can measure with very high resolution (0.01 mm or 0.001 inches) the thickness of metallic and non-metallic materials such as steel, aluminum, titanium, plastics, ceramics, glass and any other good ultrasonic wave conductor. The QTG IV accurately displays readings in either inches or millimeters.

The QTG IV digital Ultrasonic Thickness Tester is a menu-driven, fully functional unit offering everything from the basic measurement to extended memory (10000 readings storage) and USB output capabilities. This dynamic 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 wave conductor as long as it has parallel top and bottom surfaces. The QTG IV
is a quite versatile model which can be easily equipped with any of the low & high frequency probes as well as a high temperature probe.


  • 320×240 TFT color screen
  • Measure mode: (P-E) pulse-echo and (E-E) thru-paint
  • A scan and B scan
  • Auto probe zero calibration
  • Auto probe identify
  • Measuring range:  T-E 0.65-400.0mm  E-E 3.00-25.0mm
  • Option in Gain, Gate and Blank setting
  • Standard 5.0MHz transducer included, optional transducers
  • Display resolution 0.01mm/ 0.001in
  • Memory of 10000 readings in 100 files
  • USB output, easily works with A any Windows operating system both 64 and 32 bits. 
  • Multiple languages support
  • 2 years limited warranty
Technical Specifications

Measurement Modes

  • Transmit-Echo Mode (T-E)
  • Echo-Echo Mode (E-E)

 (Thru Paint & Coatings)

Type of Modes

  • Standard Mode: For general purpose
  • Minimum Mode: Only the minimum value is shown during testing
  • Difference Mode: The accurate differential value between measured value and reference value is shown.
  • Average Mode: The average value of 2-9 testing point is displayed
  • Limit Mode: See Hi and Lo tolerances with audible beeper and visual LEDs.


Manual or Auto gain control with 50dB, depending on mode selected

Gain Adjust

Gain, Gate and Blank adjustable


  • Data Structure: English letter + Alpha numeric
  • Cell Contents: 10,000 readings
  • Memory: Build-in TIF card

Data Output

USB port: Data  output directly without any driver

Measuring Range

  • Echo-Echo Mode (E-E) : 3.00 – 25.00 mm (0.118” – 1.0”)
  • Transmit-Echo Mode (T-E): 0.65 – 400.0 mm (0.025” – 15.75”)

(Range will vary + / - depending on the thickness of coating


Dual Element (2 to 10 MHz) with cable length 1.25m

Custom transducers and cable lengths are available for special applications


+/-0.01mm (0.001 inches)

Velocity Range

1000 – 9999 meters/sec

0.492 – 0.3936 inches/ms


Membrane switch with 8 tactile keys


ABS plastic


320×240 TFT color display

Display Views

  • Large Digits: Standard thickness view
  • Scan Bar: Thickness 10 readings per second; viewable in B-scan and large digit views

Battery Type

Two 1.5V AA Alkaline

Battery life

Typically operates for  24 Hours

Working Temperature

-10oC to 50oC

-14oF to 662oF


Metric & English

Dimensions (LxWxH)

133mm x 75mm x 29mm

5.2inch x 3.0inch x 1.1inch



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