PRM210-01 915 MHz FHSS Wireless Module +8 dBm (6.3 mW) 230 kbps / 500 kbps - 3шт по 200р
https://media.digikey.com/pdf/Data Sheets/Laird Technologies/LT1110.pdf
PRM120-01 2.4 GHz FHSS Wireless Module +21dBm (125 mW) 280 / 500 kbps - 2шт по 300р
https://media.digikey.com/pdf/Data Sheets/Laird Technologies/LT2510_Man.pdf