Features
- 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

Command Reference: UART Relay Module Commands Reference