The range of S.L.Electrotech Electricity Meter Test Equipment covers the following categories :- .Portable Test Equipment .Manual Power Benches .Scanning Heads .Timing Equipment .Reference Standards .Semi-automatic Test Systems .S457 Fully Automatic Three phase Meter Test Systems .S440 High Voltage Insulation Tester( Flash Tester) .Meter Racks .Voltage Stabilisers .Meter Data-management Systems This equipment has been developed in collaboration with Britain's major meter manufacturers and utilities.