RFM69HCW Transceiver Radio Breakout 868 or 915 MHz RadioFruit

Most WiFi, Bluetooth, Zigbee and other wireless chipsets use 2.4GHz, which is great for high speed transfers. If you aren't so concerned about streaming a video, you can use a lower license-free frequency such as 433 or 900 MHz. You can't send data as fast but you can send data a lot farther.'

QUICK SPECS:

• 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 license-free ISM band: "European ISM" @ 868MHz or "American ISM" @ 915MHz
• Use a simple wire antenna or spot for uFL or SMA radio connector