Hardness Tester
Ultrasonic Thickness gauge


The QS3 DL is a simple wall thickness gauge with a Data Logger that is used to measure metals without coatings, plastics, acrylics, ceramics and glass among other materials.


It features Auto 1 point calibration, large numbers, low alarm, and a Data Logger to store up to 5000 readings that can be sent to a PC via USB using dmq DataCenter software included at no charge.


  • Pulse-Echo
  • Range:
    0.6 to 500mm             0.025 to 19.999in Depending on transducer and material
  • Resolution:
    0.01mm / 0.001in


  • Metric
  • Imperial


  • Auto, 1 point (no Cal key) Calibrate using the test block on the front panel



  • Ajustable gain
  • Coupling indicator
  • Capture minimum
  • On screen materials velocity chart


  • Low, user defined
  • Alarm types
    Visible: Flashing backlight and irregular digits
    Audible: Intermitent beep

Graphic LCD Display

  • LCD 128x64 pixels
  • LED backlight illumination
    (ON, OFF, Auto)
  • Digits:
    17mm / 0.66in tall
  • Adjustable digital contrast


  • USB to connect to a PC or RS232 (optional cable)
  • Type Lemo "00" connectors for transducer


Data Logger

  • 5000 readings that can be sent to a PC using dmq DataCenter software
  • Capture modes
    Manual: touch the Store key
    Auto: when transducer is coupled 


  • English
  • Spanish
  • Portuguese


  • 5 year limited on electronics
  • 6 months on accessories

Front Panel

  • Touch-Sense with sensitivity adjustment
  • No mechanical parts
  • Auto pressure recognition
  • Auto scrolling recognition


Power Supply

  • 2 x AA 1.5v Alkaline
  • 2 x AA 1.2v Ni-MH Rechargeable
  • Easy slide battery compartment cover



  • H: 117mm / 4.60in
  • L: 78.74mm / 3.10in
  • W: 24mm / 0.94in


  dmq QS3 DL standard configuration  


  dmq QS3 DL electronic unit  
  dmq 5MHz standard transducer  
  Coupling gel  
  CD with dmq DataCenter software  
  USB cable to connect to PC  
  Printed user manual  
  High impact carrying case  
  Certificate of conformity  
DP10 dp300

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