... MHz, 450MHz, 670MHz, 868MHz, 915MHz or ISM others Provide rich interface: RS-232/RS485/TTL YS-C30L RF transceiver Module RF ... supply: DC5V Products Main Features:* Carrier frequency: 315MHz, 433 MHz, 450MHz, 670MHz, 868MHz, 915MHz or ISM others;* Provide ... network,data collection system.3.Specifications* Power supply: DC 5V;* RF power: 500mW;* Receiving current: <25mA;* Transmitting current: <400mA ...