DC 12V Realy 16 Channel RS485 Relay Module RTU Relay Board PLC Controller Serial Port Switch 485 relais

Expansion board 12v 6-channel rs485 relay plc electrical expansion module for modbus rtu protocol remote control

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2-way relay module output 2 channel switch input ttl/rs485 interface communication modbus-rtu

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Dc 12v 4 channel relay module stm8s103f3 relay board microcontroller rs485 communication relay module

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Dc 12v relay 8 channel relay module rs485 relay command programmable control module board

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12v relay switch 8-channel computer usb controller switch relay module pc smart relay switch controller

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Dc 12v multifunctional dpdt relay board delay relay time switch turn on/off plc module

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

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

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New-4 channel dc 12v rs485 relay module modbus rtu and at command remote control switch for plc ptz camera security monitoring

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16ch dc 12v serial port db9 uart rs232 relay module for plc pc com 3d printer led home lighting motor

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12v 8-channel rs485 relay plc expansion board for rtu protocol remote control industrial accessories

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Dc 12v 16 channel bluetooth relay board wireless remote control switch 16 channel bluetooth relay module

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Relay delay module plc industrial control board fx1n-06mr programmable relay delay module with shell

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Dc24v fx1n-14mr industrial control board plc programmable logic controller relay output plc module

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Plc industrial control board fx1n-06mr programmable relay delay module with shell

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12 channel relay output 16 analog input modbus rtu rs485 rs232 module

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12v 1 channel rs485 modbus rtu serial port multi-function relay module plc controller plastic

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Nlk-io-0808 rs485 relay io extension serial port relay module modbus rtu relay

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Dc 12v 4 channels optocoupler isolation relay interface module tigger voltage 3.3v 5v 12v 24v plc signal amplification board

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5pcs optocoupler dc 5v 1 channel relay shield power supply relay module for arduino intelligent home improvement relay board

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-6%

Dc 5v 1 channel relay shield power supply relay module for arduino intelligent home improvement relay board with optocoupler

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5pcs/lot relay shield dc 5v 1 channel relay module for arduino pic avr dsp arm mcu power supply relay board with optocoupler

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2 channel relay module serial port rs232 relay switch board tb351 uart protocol db9 interface remote control board

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Dc 5v/12v/24v multifunction relay plc cycle delay time timer switch self-lock module plc home automation delay module board

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12v 16 channel relay module board with optocoupler protection lm2576 power pic avr mcu dsp arm

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-4%

Dc 24v 24 channels optocoupler isolation relay interface module tigger voltage 3.3v 5v 12v 24v plc signal amplification board

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1 pcs relay delay module plc industrial control board fx1n-10mr programmable relay delay module with shell

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12v 16 channel relay module board with optocoupler protection lm2576 power pic avr mcu dsp arm

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8 channel relay module optocoupler isolated relay 12v 10a opto relay board expansion board

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-7%

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

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Dc 12v digital led display time delay relay controller programmable timer switch pnp sensor trigger plc automation car buzzer

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232 to 485 converter passive bidirectional rs485 to rs232 serial port protocol communication module db9 port serial port to 485

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Relay board shield with optocoupler low lever trigger for ardiuno 12v 2 channel power supply relay module

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Dc 12v delay relay switch module timer relay normally open trigger delay relay delay circuit module

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-7%

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

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10 channels din rail mount omron g2r-1 12v 24v dc interface relay module pnp npn compatible plc signal isolation amplifier board

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Relay module r223c16 16-channel relay board db9 relay module female interface serial port smart module 10a / 250vac

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Dc 5v 12v 24v led digital time delay relay automatic control switch module voltage timer relay circuit board for diy

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Automation dc 12v led display digital delay timer control switch relay module

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Relay module 16 channel relay module 5v 20a relay control module supports high and low voltage triggering

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-14%

Dc 5v 12v 8 channel relay module optocoupler module 8 way relay switch module for arduino avr arm mcu plc control

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Pcb dc voltage detection module digital display high accuracy relay dc12v relay module electronic components

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1pcs/lot 8 channel relay module 5v/12v 8-channel relay control board with optocoupler

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16 channels 12v 1no + 1nc optocoupler isolation relay module supply voltage dc 12v trigger signal dc 3.3v 5v 12v 24v

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-10%

Dc 12v 10a digital led delay relay multifunction trigger timer circuit control cycle switch plc module for motor board diy

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Mrc-25d61z05 6a 5v dc output amplifier plc module relay switch board electromagnetic contact relay 12v 24v dc 120v 230vac

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