Radio modules/Dongles design manufacter

Model:N539DS

Frequency:169MHz

Output Power:+37 dBm

Port:UART, SPI

Size:36x24x3mm

Model:N539BS

Frequency:433M,868M,915MHz

Output Power:+37 dBm

Port:UART, SPI

Size:36x24x3mm

Model:N539ES

Frequency:433M,868M,915MHz

Output Power:+37 dBm

Port:UART, SPI

Size:36x24x3mm