DeFelsko PosiTector UTG M Ultrasonic Thickness Gauge

DeFelsko’s PosiTector UTG M Ultrasonic Thickness Gauge measures the metal thickness of a painted structure.


DeFelsko’s PosiTector Multiple Echo Ultrasonic Probe measures material thickness through paint, linings, and coatings, without having to remove the coating. Also ideal for measuring on sandblasted materials or other applications where a durable wear-face is required.

DeFelsko’s New Standard Gauge Body features storage of 1,000 readings per probe. DeFelsko’s New Advanced Gauge Body features storage of 250,000 readings from multiple probes in up to 1,000 batches and sub-batches.


  • 5 MHz contact probe with wear-resistant Alumina probe tip
  • Multi-echo technique averages 3 or more echoes for accurate and reliable readings
  • Automatically disregards the coating when measuring wall thickness, eliminating the need to remove and repair paint in order to evaluate the surface
  • Toggles easily between multiple-echo and single-echo modes
  • Resolution of 0.001″ (0.01 mm)
  • Accuracy to ±0.001″ (±0.03 mm)
  • Single echo measuring range 0.100″ to 5.000″ (2.50 to 125.00 mm)*
  • Multiple echo measuring range 0.100 to 2.500″ (2.50 to 60.00 mm)*
  • Large, easy-to-read, graphics LCD with multilingual support
  • Hi contrast color display with back-light
  • One-handed menu navigation
  • Pre-programmed Velocities – simply select from a list of common materials or enter your own with ease
  • Measures up to 5 inches on uncoated carbon steel
  • Bi-color indicator light – ideal in a noisy environment
  • RESET feature instantly restores factory settings
  • Solvent, acid, oil, water and dust resistant-meets or exceeds IP5X
  • Scratch/Solvent resistant display suitable for harsh environments
  • Shock-absorbing protective rubber holster with belt clip
  • Precision transducers provide fast, accurate readings
  • Hi-RES mode increases displayed resolution for use on applications that require greater precision to NIST included with every gauge
  • Conforms to national and international standards including ASTM E797
  • HiLo Alarm – dual-tone alarm and bi-color indicator light audibly and visibly alerts when measurements exceed operator selected limits
  • Built-in Clock – date and time stamps each stored measurement
  • USB and IR ports for downloading to a PC, printer or data collector
  • Auto rotating display with Flip Lock
  • Backlit display for dim or dark environments
  • Single or two point adjustment
  • Imperial/Metric switchable
  • Certificate of Calibration showing traceability to NIST
  • 2 year warranty on both gauge body and probe

*range is for carbon steel, and depends on surface condition, temperature, and material

Stone Tucker Instruments is able to recertify your PosiTector UTG M Ultrasonic Thickness Gauge.

Weight227 g
Dimensions185 × 121 × 51 mm

The DeFelsko PosiTector UTG M Probe includes:

  • Ultrasonic Gel
  • Protective Rubber Holster
  • Wrist Strap
  • 3 AAA Alkaline Batteries
  • Instructions
  • Protective Lens Shield
  • Nylon Carrying Case with Shoulder Strap
  • Long Form Certificate of Calibration traceable to NIST
  • USB Cable
  • PosiSoft Software
  • Two Year Warranty

Ultrasonic Couplant

5-Step Ultrasonic Thickness Test Blocks

5-Step Ultrasonic Test Blocks

PosiTector UTG Datasheet