So the Ambient Weather F007TH is a fairly inexpensive 433.92Mhz based temperature + humidity sensor system. If you pick these up they tend to come with a base station to show the information, and between 1 and 3 sensors. The neat thing about these is that the channel can be changed, it's just a binary number that's toggled by 3 jumpers: J19, J18, J17.
Channel | J19 | J18 | J17 |
1 | | | |
2 | X | | |
3 | | X | |
4 | X | X | |
5 | | | X |
6 | X | | X |
7 | | X | X |
8 | X | X | X |
That's it, just clear / close the solder jumpers as needed to switch them if your version doesn't already have a toggle to change it