Photo 1 of 5 Sets 433M Transmitter Receiver Kit: High Frequency RF Transceiver Module for Burglar Alarm & Arduino?

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Photo 1 of 5 Sets 433M Transmitter Receiver Kit: High Frequency RF Transceiver Module for Burglar Alarm & Arduino?Photo 2 of 5 Sets 433M Transmitter Receiver Kit: High Frequency RF Transceiver Module for Burglar Alarm & Arduino?