... NameYS-C20K RF moduleSpecification1W RF module, 7.5V power supply, 433/868/915MhzBrief IntroductionRF output:1W Power supply: 7.5V Used ... : YS-1020k Product Description 1.Products Main Features:* Carrier frequency: 433 MHz, 450MHz, 868MHz, 915MHz or ISM others;* Provide rich interface: standard ...