https://oceancontrols.com.au/Modbus-Products.html/IO-Modules.html/current-transducer-rs485-usb-sig-103.html
Ocean Controls IO Modules Modbus RTU Novus DigiRail VA Current Transducer | RS-485 & USB
Novus DigiRail VA current transducer for single phase AC. DIN-rail mount with RS-485, USB, and multiple outputs for accurate power measurement.
io modules modbus rtu