Best Gateway hardware to be compatible with wireless frequency transmitter

[minatohentai53]

Hey, Any best gateway hardware available to create the private topology and with the help of internet friendly endpoint, it will send the sensors data to online firebase server. For the start, I am thinking to use wireless frequency transmitter. Any leads on this will be much help.

 

[failboat]

Looks like they also sell a board that handles computing/networking to plug the sensor into and then a wireless module that you can plug an antenna into.
It looks like you mesh a few wireless ones and then somewhere one of them will also have ethernet or wifi which can go into any router.