Efergy Large (XL) CT Sensor Elite, E2 & Engage Electricity Energy MonitorsCondition: * New, old stock. Never put into service. In OEM packaging. As pictured.Additional Notes:*Compatable with Efergy Elite, E2 Electricity Monitors and Efergy Engage *Maximum cable size 19mm*Maximum current 200 Amps*Efergy CT Sensor XL with Jackplug Fitting suitable for most Efergy Elite, E2 and Ecotouch Electricity Monitors as well as the Efergy Engage Internet Hubs*The large sensor is required for use on cables that are larger 12mm and up to 19mm diameter. They are also suitable for more powerful electrical installation up to 200 amps per phase.