Rayleigh-Instruments-RI-F384-1-3-Phase-Meter-RS485-Modbus-RTU-Pulse-Output-Rayleigh-Instruments-RI-F384-A-single-phase-&-3-phase-3-or-4-wire-network-panel-mounting-multi-function-meter-The-meter-has-both-pulse-&-RS485-Modbus-RTU-outputs-Rayleigh-Instruments-RI-F384-1-3-Phase-Meter-RS485-Modbus-RTU-Pulse-Output