SX1231 based module with SPI interface +13 to +20 dBm up to 100 mW Power Output Capability (power output selectable in software) 50mA (+13 dBm) to 150mA (+20dBm) current draw for transmissions, ~30mA during active radio listening. Range of approx. 500 meters, depending on obstructions, frequency, antenna and power output Create multipoint networks with individual node addresses Encrypted packet engine with AES-128 Packet radio with ready-to-go Arduino libraries Uses the amateur or license-free ISM band (ITU "Europe" license-free ISM or ITU "American" amateur with limitations) Use a simple wire antenna or spot for uFL or SMA radio connector