Models RLX-IFH9S 900 MHz and RLX-IFH24S 2.4 GHz frequency hopping serial radios use signal that hops from channel-to-channel, allowing wireless network to avoid interference or existing networks. They can communicate with Modbus, DF1, ASCII, or any other serial devices and support RF data rates up to 230 kbps. With 128-bit AES encryption and 1 W transmit power, scalable radios are protected by rugged industrial-grade Class I Div 2 enclosure.