Prevent unauthorized access, illegal dumping, inflow, sabotage, vandalism and theft of copper or other assets with the LockDown™ device, the premier locking manhole device on the market. 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.