While there are many security devices for manhole the best method of securing amanhole is the same one used by people to secure there front door; "LockIt".

STABILOC is an intrusion prevention anddelay locking system for manhole covers designed to preventunauthorized access to critical infrastructure. Stabilocis currently deployed world-wide and helping to secure municipal, military andgovernment infrastructure and critical services world-wide.

Reasons to deploy Stabiloc

Personal Safety:prevent pedestrian and automotive accidents.

Security:prevents unauthorized physical access to communication, water, and otherunderground assets.

Terrorist / Criminal Activities: prevents the introduction of hazardous substances into systems as well as perimeter penetration via underground.

Asset Protection: Utility companies lose millions of dollarseach year due to cover theft as well as theft and damage to criticalinfrastructure such as cable and pipe.

Service Interruption: Loss of services to clients due to damage ortheft of critical infrastructure.