Manhole inspection systems

Ketta is the New Zealand distributor of SAM manhole inspection grates.
The SAM circular safety grate by Mass Products is a temporary fall protection safety device designed to be used during maintenance in and around manhole openings.
The Mass Products SAM Manhole Safety Grate was developed because of a need for increased safety around open manholes. 
It is widely known in the industry that opening a manhole can be a potentially high risk and fatal activity that requires operators to erect approved safety equipment. 
It is impractical and inefficient to erect and remove, in typical situations, safety barricades each time a manhole is needed to be inspected or maintenance to be carried out.
We have developed Mass Safety Grates to reduce and eliminate those safety issues.