DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Port

Instruction Click here to openFeature Description 2 channel relay module Power input DC 5V 7 12V recommended 7 5V 9V PC serial port RS232 control relay Power indicator LED light Output indication Relay output with LED indicator easy to check the working status of the relay Communication protocol UART protocol communication baud rate 9600kpbs 8 data bits one stop bit no parity Each data frame contains eight bytes Two way data transmission The baud rate is 9600kbps 8 data bits 1 stop bit and no parity Each data frame contains eight bytes Size 71x47mm x 19Weight 45 gramsPackage includes 1 x 2 channel relay module