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Adapter for converting the RS485 output from the EFM-100 or the ERL-10 programmable relay to USB.

RS485 to USB Adapter

RS-485 to USB adapter


Used for connecting the EFM-100C or ERL-10 Relay Module to a computer or laptop USB port over distances up to 1200m/4000ft.

Parts Included

RS485-USB Adapter
USB Cable
Quick start guide



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