A new specially developed safety and locking mechanism for securing manhole and access covers. A key feature is its ability to vastly reduce the levels of theft and casual vandalism. This security aspect has a secondary and probably more important key feature in that it also supports safety policies. With the reduction of unexpected missing manhole covers, which can result in extremely dangerous situations in public spaces and roadways. Using the US250 Manhole guardian secures against unwanted access, whilst allowing easy access for authorized persons thanks to a specially manufactured key, which is produced for each user individually.
Additional variable lockable mechanisms, which in various range of specialised modifications gradually replaces the conventional padlock combined with a latch, bar or chain. Product is suitable for using of standard FAB and GUARD cylinders and can be integrated into the general key system in connection with door cylinders. The new lockable system is not intended only for locking the rooms but also for all mobile and free-standing devices. It is suitable for securing the construction machinery, vehicles, freight trucks, gardening and sport equipment.