Keep Your Manholes Secure With the LockDown™ Security Device

Are there holes in your security?

If anything enters your facility from below ground, the answer is “yes.” If those manholes aren’t secured with the LockDown™ device, then your infrastructure is vulnerable.

You control access to your facilities, data and equipment, yet the access points to your communications and data lines or other critical infrastructure are often covered by an unsecured, removable lid.


  • Corrosion-resistant, tamper-resistant 12-gauge stainless steel
  • Simple removal with the key for unobstructed access
  • No gears or moving parts: less susceptible to rust and debris
  • No modification to manhole usually required
  • Durable: 99.99% success rate; only two breaches across 20 years and 100,000+ devices
  • Lock is protected by unique lock guard
  • Easy to install: one person install five minutes or less

free quote

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Need Assistance?

Talk to one of our professionals directly

Toll-Free: 866-399-2512

Added Security

We recommend Abloy locks. These locks are virtually pick-proof, neither have no pins or tumblers, and have patented restricted blanks.

For an additional level of security, with LightLOC we can provide real-time monitoring so that you’ll know the moment someone is trying to get into a manhole.

Product Downloads

*NOTE: Videos are password protected for security. To obtain video passwords, please contact us via the form above, by emailing secure@lockdowninc.com or by calling us at 866-399-2512.

Prevent unauthorized access, illegal dumping, inflow, sabotage, vandalism and theft of copper or other assets with the LockDown™ device

The patented LockDown™ is used to secure some of the most sensitive and secure facilities in the world, including military installations, the Pentagon, embassies abroad and the White House. (We are on the GSA schedule.) Our customers also include universities, telecoms, data centers, distribution centers, municipalities, airports, corporations and manufacturers.

If infrastructure
needs protection,

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