DC 12V 2 Ch RS485 Relay Board UART Serial port Switch Module Modbus AT command Control for PLC Smart Home automated industry

-21%

16 channel dc 12v rs485 relay module modbus rtu 485 remote control switch board for plc ptz camera motor

0

0

-17%

2 channel serial port relay module dc 12v pc computer usb rs232 db9 rs485 uart remote control switch board for smart home

0

0

-25%

Dc 12v 4 channel rs232 relay board pc usb uart db9 remote control switch for smart home garage door car alarm farm motor

1

6

-8%

Hot sale r421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door loc

0

0

-16%

For modbus rtu 2 channel 12v relay output board module switch input rs485 / ttl uart module

1

0

-3%

Dc 6.5-30v 32ch din35 c45 rail box rs485 modbus rtu controller 300ma driver module for plc relay switch led motor

1

6

5.0

-5%

2 channel serial port relay module dc 5v dc 12v pc computer usb rs232 db9 rs485 uart remote control switch board for smart home

1

1

Ce035_s with shell 2ch rs485 relay dc 12v switch board modbus poll at command plc for ptz camera electric door water pumps led

0

1

-3%

16ch dc 12v rs-485 modbus rtu relay board rs485 bus remote control switch for led motor plc ptz camera smart home

1

1

Dc 12v din35 c45 rail box 16 channel rs485 relay module modbus rtu uart control switch board for plc ptz camera motor led

1

2

5.0

-21%

Hlzs-for modbus rtu 2 channel 12v relay output board module switch input rs485 / ttl uart module

0

0

-4%

Dc 12v relay module 16 channel modbus rtu rs485 relay board plc controller serial port switch with din35 rail box for arduino

2

0

R421c32 dc 12v 32 channels rs485 delay relay module rtu protocol serial port remote control switch plc control board

0

0

16-channel 12vdc smart home diy rs232 serial com controlled relay board db9 uart at command switch module

0

0

-4%

8 channel dc 12v rs485 relay module modbus rtu 485 remote control switch for plc ptz camera security monitoring

0

1

-15%

Dc 6-24v rs485 rs232 (ttl) rtu control switch board uart plc programmable logic controller relay module support for modbus / at

1

1

-2%

Dc 12v relay module 16 channel modbus rtu rs485 relay board plc controller serial port switch shield for arduino

0

0

-2%

Db9 female/male rs232 uart switch board dc 12v 232 relay module for plc led motor

0

1

-6%

1 pcs 8 channel dc 12v rs485 relay module modbus rtu 485 remote control switch for plc ptz camera security monitoring

0

0

-6%

Serial port io acquisition module relay control board expansion switch rs485/232 communication modbus protocol

0

0

-4%

Dc 5v/12v/24v 2 channel rs485 relay modbus rtu plc module

1

1

5.0

-15%

Ad22b04 dc 12v 4ch mt8870 dtmf tone signal decoder phone voice remote control relay switch module for led motor plc smart home

1

4

5.0

-10%

R421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door lock

0

0

-3%

R421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door lock

0

0

-2%

1 master 4 slave 433m wireless rs485 bus rf serial port uart transceiver module dtu for ptz camera plc modbus rtu led controller

1

3

433m rs485 uart wireless transceiver module rf serial port transmitter and receiver module for ptz camera modbus led controller

0

1

Rs485 16 channel relay module rtu relay board plc controller serial port switch for arduino dc 12v

0

0

-15%

Dc 12v dpdt signal relay board dual channel selector switch module for stereo audio motor polarity reversal plc

0

1

-9%

9v 12v 4ch serial port uart rs232 relay remote control kit

0

0

-2%

Dykb 16ch modbus rtu rs485 relay module bus remote control switch board plc control dc 12v for lamp led motor plc ptz smart home

1

1

5.0

-1%

R421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door lock

0

0

-8%

R421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door lock

0

0

-1%

R411b01_5v mini 5v rs485 to ttl converter module uart to rs485 converter sp485ee for smart home modbus rtu control

0

1

-7%

16ch modbus rtu rs485 relay module bus remote control switch board plc control dc 12v for lamp led motor plc ptz smart home

0

0

-21%

Multifunction usb rs232 ttl uart relay board 8ch dc 5v 12v 24v pc mcu control switch for motro led ptz plc ipc

0

1

-4%

R421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door lock

0

0

-9%

R421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door lock

0

1

12v 1 channel rs485 modbus rtu serial port multi-function relay module plc controller mini relay module at modbus command delay

0

1

-6%

1 pcs 16ch dc 12v rs-485 modbus rtu relay board rs485 bus remote control switch for led motor plc ptz camera smart home

2

2

5.0

Incomplete data

Mini dc 12v rs485 delay relay module modbus-rtu uart switch board for cctv camera ptz led security plc

0

0

-4%

Dc 12v 24v 32-channels din35 c45 rail box rs485 modbus rtu uln2803a darlington transistor controller plc io expansion board

2

5

5.0

Incomplete data

Dc 12v din35 c45 rail box 16 channel rs485 relay module modbus rtu uart control switch board for plc ptz camera motor led

0

1

-6%

Quality r421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door lock

1

0

-10%

Diymore 1 channel timer delay relay switch module led dislay relay board for arduino smart home dc 12v

0

0

-0.5%

Wsfs hot r421c32 dc12v 32 channels modbus rtu rs485 bus relay module uart serial port board for plc led home automation door loc

0

0

Dc 12v 16 channel rs485 relay module modbus rtu protocol remote control plc expansion board circuit board with din rail box

0

1

-10%

Dc 12v 4ch ir infrared remote control switch toggle controller relay board

0

0