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Available Fri 8:00 AM
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Crack Comparator Card
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Open M–F: 8:00am–5:00pm

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Crack Comparator Card

Model: HM-639
$4.00
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Expert
Questions? Talk to a Product Expert

Get help from our in-house testing equipment specialists.

Open M–F: 8:00am–5:00pm

Call Us: (800) 444-1508
Description

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 centimeter measurements. View our full line of Concrete Crack Monitors.

Features:

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

Included Items:

  • Crack Comparator Card

Related blogs:

Specifications

Attribute name Attribute value
Estimated Shipping Weight 1.0lb (0.45kg)

Product Q&A

Displaying Q&A 1-4 of 8

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Q: Will this work with fan-forced heaters?

I'm very satisfied with this product. It was exactly what I wanted in my travel trailer, for a lot more accurate heating. Now I can pinpoint it to exactly the temperature I want, instead of guessing, sliding the conventional thermostat back and forth. Will for sure save on propane too! Nice back light when adjusting the temperature, making it easy to see even at night.

Displaying Q&A 1-4 of 8
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