RS485 RS232 USB Wireless Transceiver 20DBM 433mhz 868mhz Transmitter and Receiver VHF/UHF Radio Modem DC 4.8V-9V

RS485 RS232 USB Wireless Transceiver 20DBM 433mhz 868mhz Transmitter and Receiver VHF/UHF Radio Modem DC 4.8V-9V

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