ZRS RS-232 Communications Module + Node Red

Hi,

I saw the RS-232 communication module and was wondering if this would work with the IoT long rang transmitters, enterprise gateway and nodered.

My goal is to attach this to a load cell / weight scale readout to get the weight data to nodered and then to my mqtt broker.

If so how would I go about ordering this?

Additionally would this same thing work with my PLC? Or is there an ethernet module also available?