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Concrete Thickness Gauge

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Concrete Thickness Gauge

Supports the following standards: ASTM C1383

The Concrete thickness gauge measures concrete slab thickness without drilling. With this device you no longer need to drill, core, or excavate sites to determine concrete slab thickness. The CTG-2 is a nondestructive system for measuring the thickness and integrity of concrete slabs. The Concrete thickness gauge detects: voids, honeycomb areas, cracks and delamination.
It can be used on pavements, tunnel linings, walls and other plate-like structures using the Impact Echo principle. Easy-to-use, this unit requires no special knowledge or training— just follow the easy instructions and connect the unit to a user-provided Windows-based computer or tablet (not included) and start testing using the included WinCTG2 software.

Software Features:

  • Olson’s WinCTG-2 Software is used for data acquisition and analysis.
  • Report Capability: Use X and Y coordinates to set up a test grid. Generate a thickness summary table which can be exported to most spreadsheets in comma separated format. For greater accuracy, calibrate the unit at a location of known thickness to obtain the concrete velocity for the job.

For additional information about non-destructive concrete testing equipment, click here.


Thickness Range: 3.2″ to 6′ (81mm to 1.8m)
Thick Mode Thickness Range: 20″ to 6′ (50.8cm to 1.8m)
Power: CR123A 3V Lithium battery
Frequency Resolution: 10Hz
Samples per Test: 4545
Sampling Rate: 45454 samples per second
Maximum Nyquist Frequency: 22700Hz
Cable Length: 3′ (910mm)

Additional information

Product Options


TM C1383