1.5/8W.433Mhz;Wireless rf transmitter 2 ,The range is 2-20KM in the open site. 3.working in a wireless remote control ... - frequency integrated circuit and single chip MCU are used for lessened peripheral circuits, high reliability, and low failure rate. ... of our modules. 5/8W,RS232 wireless point to multi-point wireless network for longer distance range to 20KM,Wireless transparent rf transmitter