CRACKMON 4020A Heavy-Duty Building Foundation Crack Monitor for Concrete, Masonry and Stucco
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<b>[Product Information]</b><br>
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<li>Contains (1) CRACKMON® 4020A heavy-duty crack monitor, instructions, and crack progress chart</li>
<li>Engineered polymer with vibrant measurement grid includes new polar magnitude measurement</li>
<li>±20 mm (±0.79") horizontal and ±10 mm (±0.38") vertical range</li>
<li>Unique CRACKMON® serial ID for engineering and forensic traceability</li>
<li>Designed and made in the USA. Epoxy and fasteners sold separately.</li>
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