... Module, 2W RF Module, Industrial Wireless data collection, 433Mhz, 5Km range,Modulation:GFSK Meter Reading,data transmitting RF Module, 2W RF Module, ... Industrial Wireless data collection, 433Mhz:YS-C30 series data radio designed for Serial (UART data) to RF in industrial ... ISM others optional;* Interface: RS-232/ RS-485/ TTL/USB optional;* Multi-channels: 8 channels, expandable for 16/32 ...