Not sure if I have the right nomenclature down above in subject.

I need to be able to purchase a Wi-Fi extender (I think) that I can mount outside on my Camper and point towards the camp office and connect to the provided free Wi-Fi. I will be staying for a long bit of time; they offer 600 meg over Wi-Fi.

What can I purchase from TP-Link that would allow me to grab the SSID of the Campground and plug it into my internal router in my camper to make the internet connection more reliable for all my IOT devices and TVs and PCs in my camper?

I need to pick up the signal about 2 to 2.5 acres away from the office outdoor AP and bring inside my camper, as I will have to be working remotely for a few weeks.