I'm not sure about that, but adafruit also sells a 432mhz board in the US without any warnings: https://www.adafruit.com/product/3079 https://www.adafruit.com/p

I'm not sure about that, but adafruit also sells a 432mhz board in the US without any warnings: https://www.adafruit.com/product/3079 https://www.adafruit.com/product/3079