I am willing to pay extra if needed, but if the cheap ones are ok then why not.
200 feet @ 12 volts
Used the same unit and got a useful range of 200 feet using 12 volts on xmtr.
When I was building the ..... [robots] I bought a lot of radio modules and everybody seemed to say it was easy to transmit data, Personally I found the results depended more on the weather in some random place rather than the data I fed in. It was a nightmare. Even using NiCam's Manchester encoder/decoder chip results were very poor and I had to do a lot of error checking. Until I changed to the EasyRadio modules, that is, and their encoder/decoder worked flawlessly. Ok so they are dearer but they work and no pairing rigmarole required.
RF controlled power socket switch at 433,92 MHz