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Constant TT220 Ultrasonic Thickness Tester


$550.00 inc GST

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The Constant TT220 is a non-destructive (NDT) Ultrasonic Thickness Measurer


  • Auto calibration to assure the accuracy
  • Auto linear compensation
  • Quick adjustment
  • Coupling status indication
  • 10 thickness measurement storage
  • Sound velocity measurement
  • 12 sound velocity for different material (adjustable)
  • Low battery indication
  • Auto power off 
Display 4 digital LCD display
Min. display unit 0.1mm
Working frequency 5MHz
Measurement range 1.2 to 255.0mm (steel)
Min. limit for tube Ø20 x 3mm (steel)
Accuracy +/- (1%H + 0.1)mm H denotes the measured thickness
Sound velocity range 1000 to 9999m/s
Sound velocity accuracy when the given thickness

 20mm: +/- 1%                                        20mm: +/- 5%


Operating temperature 0 ~ 40°C
Power supply 3 x 1.5V (AAA alkaline battery)
Operation current  normal operation: 50mA                    with backlight: 120mA                          standby:20µA       
Size 72 x 146 x 29mm
Weight 202g


Standard accessories:

  • Transducer ø10mm 5MHz
  • Coupling agent
  • 4mm sample block
  • Batteries
  • Instruction manual

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