Profile: Northern Design (Electronics) Ltd. specializes in providing energy efficiency solutions. Our product range includes sub meters providing a comprehensive range of measurement parameters, current clamps, transducers and complete energy management solutions including smart web enabled meters & complete monitoring & targeting systems. Retro-fit metering meter kits are complete with split-core current sensors, just fit and clip. Sensors provide a 0.333V output making them safe for installation on live conductors. It is designed for quick installation on existing circuits.