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868mhz Usb Port Wireless Repeater, Data Transmitter Receiver Rf Module Kit (1pc Snr613+sw433-zt100 Straight Rod Antenna) - Communications Parts - AliExpress
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868mhz | 915mhz 1.4km Long Range Usb Wireless Data Transmitter And Receiver Rf Repeater Module Snr613 - Communications Parts - AliExpress
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