... 5/8W.433Mhz;Wireless rf transmitter 2 ,The range is 2-20KM in the open site. 3 ... error rate is 10-2.4. Long transmission distance Within the range of visibility, It can transmit >20km ... the interfaces, allowing the transmission of 255 Bytes long data frames at one time for more flexible ... air, control, etc.9. High reliability, small and light Single chip radio - frequency integrated circuit and single ...