[IC]：SX1276 [Frequency]：850～931MHz [Power]：20dBm [Distance]：5km [Size]：14*20mm [Introduction]：E32-900M20S is a self-developed, 868/915MHz LoRa TM SMD wireless module with the maximum transmission power of 1W which is based on the SX1276 produced by Semtech in the United States