Proceq Zonotip Thickness Gauge





The Zonotip is designed to measure the thickness of ferrous and non-ferrous metals as well as parts made from polymers, glass, ice, and other materials with a low ultrasonic attenuation. The product s measuring range on steel is from 0.7 to 300 mm. Two different probes are available: the standard dual-element 4.0 MHz transducer and the compact single-element 2.5 MHz transducer (only Zonotip+).The instrument can operate in three different modes (Norm, Memory, A-Scan), either displaying the current reading as digital numbers or as real-time graphical images (A-Scan – only Zonotip+).


  • Solid body of light, shock-proof plastic
  • Suitable for difficult weather conditions (frost- and heat-proof)
  • Large high-contrast color display ensures visual control of the inspection process
  • Memory for 50’000 measurements
  • 4.0 MHz dual-element transducer
  • Automatic adaptation to the surface curvature and roughness
  • Automatic logging of max and min values while scanning the object
  • Measuring of the ultrasonic pulse velocity on a sample with known thickness
  • Color, sound and vibration indication when set limits are exceeded
  • USB connection to PC for data transfer
  • 8 different languages selectable
  • Metric and imperial units
  • Signal strength indication
  • Battery level indication and automatic switch off function.

Thickness measurements where only one-sided access is possible, such as

  • Pipelines
  • Tanks or pressure vessels
  • Erosion determination on pipes and tubes
  • Remaining wall thickness of a bridge
  • Polyethylen pipes

The Zonotip Ultrasonic Thickness Gauge complies with the following standards:

  • ASTM E 797
  • EN 15317
Technical Data


Operating temperature -20 °C to 50 °C (-4 °F to 122 °F)
Humidity up to 85% RH with a temperature of 25 °C (77 °F)
Battery operation period 9h
Power built-in LiPol accumulator
Operation supply voltage 3.7 V
Dimension 157 x 70x 23 mm (6.1 x 2.7 x 0.9 inch)
Weight 250 g
Display type TFT
Permissible surface roughness Rz160 / N12 / Ra = 50 µm
Minimum curvature radius 10 mm (0.4 inch)
Ultrasonic velocity range from 1000 to 9999 m/s
Data memory 100 groups each max. 500 measurements
Interface type USB
Thickness resolution < 99.99 mm: 0.01 mm
> 100.0 mm: 0.1 mm


Type Dual-element Single-element (only Zonotip+)
Frequency 4.0 MHz 2.5 MHz
Measurement range (steel) 0.7 – 300 mm 0.7 – 300 mm
Diameter of ultrasonic element 16 mm (0.6 inch) 10 mm (0.4 inch)
Connector type LEMO type 00.250 LEMO type 00.250
Size 45 x Ø23 mm (1.8 x Ø0.9 inch) 24 x Ø16 mm (0.9 x Ø0.6 inch)
Weight 23g 16 g



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