XLRS_D1 long range radio transmitter or any other?

Does anybody have an experience with XLRS_D1 radio transmitter and receiver?
Webpages etc most of manuals are in Spanish, so it’s really hard to do the homework.
Or does anybody have any suggestions for long range radio modem, which is operational with cold temperatures (-20C) and is not with very high transmit power, but still gives range over 30km? Dragonlink is not legal in my country. TBS is not operational with minus celcius degrees.

Thank you!