FSK Data radio module: emisoras 433MHz Industrial design for data collection & transmission, high reliability & stability, ... use, low failure rate, and suitable for both indoor and outdoor use* Carrier frequency: 315MHz, 433 MHz, 450MHz, 670MHz, 868MHz, ... (); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); 500mW 2km Data transceiver/ emisoras 433mhz / wireless serial data RS232/RS485/TTL