Eletechsup DC 12V 4 Channel RS232 Relay Board PC USB UART DB9 Remote Control Switch for Smart Home Garage Door Car Alarm Farm Motor (1)

Description

Number of Items:1 Eletechsup DC 12V 4 Channel RS232 Relay Board PC USB UART DB9 Remote Control Switch for Smart Home Garage door Car alarm Farm Motor   4 Channel Relay Module;    Power input: DC 12V(8.5-13.5V).   Standby current (all relays closed) 18MA, 1 relay open 50MA, 2 relays open 81MA, 3 relays open 110MA, 4 relays open 140MA   PC Serial ports RS232 Control Relay;   Power indicator : LED lights;   Output indication : relay output with LED indicators,easy to see 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.   Baud rate 9600kbps, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes.   Size : 90mm*47mm*19mm   Weight : 62g