Crack Comparator Card

Model: HM-639
Price: $4.00

Crack Comparator Card measures crack widths of concrete used in roads, pavements, bridges, and other structures. It can monitor crack width from 0.1 to 7.0mm (0.004 to 0.26in).

The Concrete Crack Comparator Card is a handy, credit card-sized field reference tool. It is inexpensive and fits easily in a pocket or wallet, and is constructed of durable plastic and marked in inch and metric measurements. View our full line of Concrete Crack Monitors.


  • Compact size, good for field use
  • Measures in inch and metric

Included Items:

  • Crack Comparator Card

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Estimated Shipping Weight 1.0lb (0.45kg)

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Estimated Shipping Weight 1.0lb (0.45kg)
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