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Weschler Instruments is a manufacturer and distributor of electrical and electronic measurement equipment. Customers worldwide use our products in power plants, steel mills, chemical plants, paper mills and other industrial applications that require rugged, reliable and accurate instrumentation.
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Extech Ultrasonic Thickness Gauges

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Extech TKG series are a Digital Ultrasonic Thickness Gauge/Data Logger for non-destructive thickness measurements of primarily steel structures. They are designed in compact, handheld, rugged housing ideal for field use.  Select models with digital thickness readout or live color waveform and datalogging function.


  •  Measure 0.040" to 20" steel
  • Sunlight readable LCD display
  • Color graphic display (TKG250)

TKG150 & TKG250 add:

  • 100k Datalogger
  • Echo-Echo test to reduce coating error
  • B-scan (visual cross section)


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Item #


EX/TKG100 Digital Ultrasonic Thickness Gauge
EX/TKG150 Digital Ultrasonic Thickness Gauge/Datalogger
EX/TKG250 Ultrasonic Thickness Gauge/Datalogger with Color Numeric & Waveform Display
  Results 1 - 3 of 3 1