The EKM-15E meter is a simple yet powerful unit, and will give you the total kWh for the circuit it is connected to.
It is designed for 110~120 volt systems, with a maximum of 50 amps. It comes with its own CT with a 1/2-inch diameter hole for your hot wire to pass through.
Spec sheet: EKM-15E Spec Sheet
If your system is over 120V, over 50A, wire diameter is over 1/2-inch, or you want the ability to connect to a computer, we suggest you take a look at our 120V Metering Package.
We recommend using our watertight enclosures for this meter model, as the Indoor Enclosure was disign to be used with our larger format meters: Enclosures