Leviton 1K120-1SW Series 1000 120V 100A 1P2W Indoor Kit with 1 Solid Core CT Measures kWh and peak demand (optional) Certified to all applicable standards of ANSI C12.1 Equipped with both Isolated Pulse Output and RS-485 Serial Port (Modbus Native) standard for easy interface with most AMR and BAS systems Utilizes revenue grade 0.3 accuracy class 0.1A secondary solid core current transformers (CTs) that conform to all applicable ANSI requirements or 1-Percent accuracy split-core CTs Up to three sets of CTs per phase can be paralleled per meter