Description: The CC1101 is a 868 MHz transciever module. In conjunction with an ATMega328 microcontroller, you can build your own CUL for a FHEM system. The CC1101 module has a maximum range of 300 meters in the open field and a sensitivity of approx. -112 dBm. For communication, an SPI interface is available. Specifications: IC: CC1101 Operating voltage: 1.8V - 3.6V Current consumption: max. 25mA (load), 200nA (sleep) Logic level: 3.3V Interface: SPI Radio frequency: 868MHz Range: 300m free field Sensitivity: about -112 dBm Size: 1.9x1.7cm/0.75x0.67" Quantity: 1 Set Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you No Retail Package Package Includes: 1 x 868 MHz Module 1 x 868 MHz Antenna