• Freq. : ISM band 862 ~ 936MHz • Receiver Sensitivity : -137 dBm • Transmit Output Power : 20 dBm • Sleep Current : 3uA (at power down state) • Security processor ( 128/192/256 bits AES ) • Packet engine up to 256 bytes with CRC • Serial Port : RS-232, RS-422, RS-485 • Distance : Up To 5000 Meters in free space • Data Rate : 0.244 ~ 18.2K bps (LoRa) / 300 K bps (FSK) • Application mode : Star