Technical Parameters:Theory:Voltage RelayModel Number:XTW1-0095Power Source:DCContact Load:Low PowerVoltage:12VHardware resources:RS485 communication interfaceTTL communication interface2 optocoupler isolation input2 way optocoupler isolation outputA user buttonA user LEDA power indicatorA STM32F030F4 microcontroller2 relay status indicators LED lightsPower supply terminal interface (12V power supply)Modbus RTU instructionBaud rate: 9600 8 NONE 1Hexadecimal sendHexadecimal receptionSteps: 1. Software settings communication baud rate2. Set the address (communication using the device address, the default address is 01)colour:blueMaterial:Metal + plasticNote: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Package Contents:1pcs * relay moduleOnly the above package content, other products are not included.