APC220 Wireless Data Communication Module USB Adapter Kit

Working voltage: 3.4V to 5.5V
UART / TTL interface.
Work frequency range: 418- 455MHz.
Transfer rate: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 / 57600bps.
Mode: GFSK.
Distance: 1000m-1200m in open area.
256bytes of data buffer.
Suitable for large data transfers.
The RF Modules (pair) offer two way communications over long distances.
Use the modules directly via USB or connect them to your microcontroller.
Size: 4.7 x 1.8 x 1.1 cm / 1.85 x 0.71 x 0.4inch.