How Manhole Sensors Protect our Critical Infrastructure

When dignitaries or high-profile individuals visit cities, municipal crews often weld manholes shut in vulnerable locations to ensure safety, costing tens or even hundreds of thousands of dollars each time they must be welded and then cut open again. Manhole covers and similar access points related to sensitive areas as well as critical infrastructure locations have proven to be a source of significant vulnerability, and many malicious acts such as vandalism, material theft, and even terrorism have occurred due to ease of access through manholes that generally are unprotected.

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Source: American Security Today

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