485 relay control panel relay module relay output module switch card.

485 bus control 1 switch input 1 relay output support timing 3 kernel programming

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-4%

Micro usb relay module 5v 4 channel relay module relay control panel with indicator 4 way relay output usb interface

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Micro usb relay module 5v 4 channel relay module relay control panel with indicator 4 way relay output usb interface

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3

-34%

1pc micro usb relay module 5v 4 channel relay module relay control panel with indicator 4 way relay output usb interface

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-17%

Free shipping 16 serial bus relay control panel of modbus 485 interface module

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-5%

Dc 12v realy 16 channel rs485 relay module rtu relay board plc controller serial port switch 485 relais

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-21%

Free shipping 8 rs232 485 serial relay control board (modbus) computer control relay module

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-0.6%

Serial port 485 interface control relay 32 way relay output board bus control output switch board

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4 channel relay module 4-channel relay control board with optocoupler. relay output 4 way relay module

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Dam0404a 4-channel analog acquisition 4-channel relay output control board modbus isolation 485

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0

-8%

4 channel relay module 4-channel relay control board with optocoupler. relay output 4 way relay module

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0

-7%

Dc 5v 4 channel relay module relay control panel with indicator 4 way relay output micro usb interface

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0

-0.3%

4 channel rs232/485/serial control relay module board modbus rtu/computer control switch x-0.13

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0

-3%

4 channel relay module 4-channel relay control board with optocoupler relay output 4 way relay module for arduino mcu control

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4

-1%

4 channel relay module 4-channel relay control board with optocoupler. relay output 4 way relay module for ard uino

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0

-3%

Max485 module rs-485 module ttl turn rs-485 module

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0

-3%

30pcs 4 channel relay module 4-channel relay control board with optocoupler. relay output 4 way relay module for arduino

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0

-2%

485 to 4-20ma module rs232 analog output signal control converter modbus

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0

5 channel relay output/isolated digital input ethernet module/modbustcp capture card itcp-2505 module sensor

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1

Self generator electricity wall panel remote control switch 12v relay switch module receive

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0

-2%

Modbus rtu 4 ch relay module input 485 ttl uart communication 4-channel input 7-24v relay module cnim hot

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0

-2%

Micro usb relay module 5v 2 channel relay module, relay control panel with indicator 2way relay

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0

-7%

485 to io sensor dry contact io switch signal to 485 bus data module io module

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0

Plc remote control module wireless programming communication debugging 4g card to network port serial port 485/232

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0

-0.1%

Serial port 16 relay module / relay control panel / support software programming /232 interface 16 output

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0

-15%

Industrial 485 isolator rs485 relay amplifier distance extender

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0

-21%

Free shipping 16 serial bus relay control panel of modbus 485 interface module

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0

-7%

Modbus rtu protocol 4 in 4 out control relay module rs485 switch input and output plc module

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-7%

New 16-channel relay output module switching quantity input and output module relay control board acquisition alarm

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0

Relay internet bluetooth module smart remote control mobile phone switch dc12v wireless relay module component

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Usb relay module mcu pc usb smart control switch jog self-locking serial port intelligent control relay module

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-2%

Computer switch card / centralized centralized control card / computer restart module / remote management room

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-3%

Incomplete data

10pcs/lot plc control 1no+1nc 24v switch interface relay module 6a 250vac/dc output led electromagnetic voltage relay switch

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0

5v 1channel relay module with optocoupler. relay output 1 way relay module for arduino in stock

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0

-4%

Ph control instrument ph transmitter ph module ph electrode 4-2ma rs-485 output

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0

Eight way input and output 232/485 dual port serial relay relay module relay board

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0

-2%

Relay module 2pcs four channels wireless switch controller sk108 electric power systems/remote switch module/water pump module

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0

Mrc-25d61z24 ultra-thin relay module ultra-thin input dc24v output ac250v 6a plc relay output amplifier board relay module

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0

-5%

8-channel io ethernet control module network relay two sets of 485 transparent transmission 30a high current iot switch

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0

-5%

Incomplete data

1pcs 5v 4 channel relay module 4-channel relay control board home smart switch with optocoupler output relay module for arduino

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1

-2%

New ac220v 1ch 10a remote control light switch relay output radio receiver module and transmitter

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0

-4%

Ewelink wifi wireless smart switch relay module mini pci-e desktop switch card restart switch turn on/off pc remote control

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0

Computer switch card / centralized centralized control card / computer restart module / remote management room

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0

-4%

Universal dc12v 2ch 10a remote control switch relay output radio receiver module and 4* waterproof transmitter toggle momentary

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1pcs with optocoupler 8 channel 8-channel relay module relay control panel plc relay 5v module

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0

-2%

Incomplete data

2pcs/lot 4-channel optocoupler relay module 5v 4 channel relay control board home smart switch 4 way relay module for arduino

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0