EKM Metering kWh Electric Meter: 120 Volt, 2-Wire, External 14mm, 50 Amp ACCURATE - Compact but accurate meter is ideal for metering individual circuits or groups of circuits. ADAPTABLE - Multiple wires can be passed through the CT and current passing through them is totaled. DURABLE - Can be sealed for tamper protection with meter seals. EASY TO INSTALL - External CT makes installation much easier. DIN-rail mounts included as well. PULSE OUTPUT - Connect a pulse counter up to 200 feet away from the meter to be able to remotley know your kWh consumption.