TED Pro 400 Amp 3-Phase Energy Monitor (Commercial / Industrial -The Energy Detective) Must be Installed by Licensed Electrician Each TED Pro Commercial package includes: One (1) Set of three (3) Current Transformers, designed for three phase electrical service One (1) Measuring Transmitting Unit (MTU), designed for three phase electrical service One (1) Energy Control Center (ECC) equipped with embedded Footprints firmware