So looking back I now know you need to buy more than 1 to get it working properly. I bought one first but you need one to connect to your router and the other to extend it.
Wi-Fi router Keenetic Air (KN-1613), white/grey
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Signal amplifier Tenda nova MW6-3 AC1200 Home Mesh WiFi system with 2 Gigabit ports. By
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Tenda Nova Mesh WiFi System (MW3) - Complete Whole Home Coverage, 1-Pack
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Get Superior WiFi Coverage with TP-Link Deco X20 Mesh System πΆ - Covers 5800 Sq.Ft, 6 Ethernet Ports, Wired Ethernet Backhaul Supported (3-Pack)
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π StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
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π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
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π Juiced Systems Silver BizHUB USB-C Multiport Gigabit HDMI Hub with 3 USB 3.0 Ports, Gigabit Ethernet, 4K HDMI, SD/Micro SD, and USB-C Power Delivery
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π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
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