The clamp meter enables the non-invasive, real-time monitoring of single phase current for any device or power strip rated up to 30 A by placing the clamp meter directly over a non-armoured power cable with a choice of locking-ring collars to suit international 20A and 30A cable sizes. The clamp meter will be installed as part of a primary/secondary topology, where all critical intelligence and monitoring power supply for the clamp meter is retained within a connected gateway. Data captured from the clamp meter will be used to display baseline operational data through connected gateway firmware or through the SmartZone Software Suite platform. The current flow is shown on a local display.