... awaken from Hardware, awaken from COM Port, awaken from Air;3. Modulation mode and Frequency Modulation mode:GFSK,Frequency:433MHZ ... the transmission of 255 Bytes data . 9. Intelligent data control and the user doesnt need to prepare excessive programs Even ... other operations automatically, such as transmission/receiving conversion in the air, control, etc.10. High reliability, small and light Single ...