China Transmitter and Receiver Fsk Wireless Transceiver Module with Silicon Labs Si4432 Chip Low-Power Long-Distance - China Wireless Transmitter and Receiver, Wireless Transceiver Module
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RF4432PRO-Si4432 wireless transceiver module from NiceRF on Tindie
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2pcs/lot SI4432 wireless module 1000meters Frequency Range 433.92Mhz Sensitivity 121dBm power 1.8 3.6 V|wireless module|power modulemodule power - AliExpress