• TKG150
  • Usually ships in 3-5 business days



  • Measurement ranges:
    • 5MHz probe: 0.040" to 20" of steel
    • 10MHz probe: 0.020” to 20" of steel (optional)
  • Sunlight readable dot-matrix display
  • Records 100K readings
  • Gain; variable adjustment
  • Echo to echo
  • B-scan; Displays a cross section of the test piece
  • Multiple transducers
  • On screen display of 8 languages
  • Fast minimum feature to capture minimum thicknesses
  • Splash-proof (IP54), high impact, compact housing


The Extech TKG150 Ultrasonic Thickness Gauge is designed in compact, handheld, rugged housing ideal for field use. The ultrasonic technology allows for non-destructive thickness measurements for primarily steel structures. The Echo to Echo function measures the metal thickness only. The differential mode displays the difference from the actual thickness measurement and a user entered reference value. The TKG150 also features velocity mode with displays acoustic sound speed.

Applications for the Extech TKG150 include:

  • Boiler tubes
  • Pressure vessels
  • Storage tanks
  • Ship Hulls
  • Containers
  • Home oil tanks
  • Pipes
  • Steam lines
  • Compressors
  • Shafts
  • Bridge pins
  • Bond inspection