8-ch Relay Module, Modbus TCP 1_0

Download the .zip file and unzip it (JSON file)

List of libraries to install in Node-RED:

node-red-contrib-fs
node-red-contrib-image-tools
node-red-contrib-modbus
node-red-contrib-simpletime
node-red-contrib-ui-editor
node-red-contrib-ui-media
node-red-dashboard