I just learned today that the RTLSDR dongles come with the same USB idVendor, idProduct, and iSerial values programmed into the EEPROM.

Fortunately, the rtl_eeprom tool allows for the serial number to be reprogrammed and therefore the rtl_433 command can be modified to only decode received data based on the serial number of the dongle.

Program a new serial number:

rtl_eeprom -s dbdb0002

Decode from a specific serial number:

rtl_433 -d :dbdb0002 -R 40

#RTLSDR