DRF4431F20 module equivalent, 20dbm ism rf transceiver module.
* Frequency Range: 433/868MHz
* Modulation: FSK/GFSK/OOK
* SPI Data Interface
* Sensitivity: -121dBm
* Output Power: +20dBm
* Data Rate: -0.123~2.
* Remote Control
* Remote AMR
* Home Automation
* Personal data logger
* Wireless sensor network
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