Relay Module 12V 1 Channel Relay Module RS485 RTU Serial Port Multi-function Relay Module PLC Controller

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

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4ch rs485 relay switch module uart modbus rtu at for ptz plc smart home

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

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

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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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Relay module high power large current plc 5v/12v 2 channel 30a relay module 2rl-5v12v30a-d

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

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

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Waveshare industrial modbus rtu 8-ch relay module with rs485 interface, multi isolation protection circuits

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

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Rs485 to ttl module stable uart serial port to rs485 converter function module

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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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Ts1.2 time relay controller relay module relay-operated controller time relay module dc12v 0.1~999 timing range

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7 channel rs485 ntc temperature sensor measurement modbus rtu paperless recorder plc nt18b07

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Dr42a01 12v dual channel timing relay multifunctional dpdt0.1-9999 delay timer relay time control switch module

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4-channel serial rs485 multi-function controller switch internet of things relay industrial multi-channel centralized control

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

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16 way channel rs485 relay module with rs485 control keypad

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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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Modbus rtu protocol expansion module 32-way rs485 input remote io module plc extension module

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Dc 6-24v (ttl) rtu control module uart relay switchss board plc for gl

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Modbus rtu 8-way relay module, rs485 interface, with multiple isolation protection circuits, industrial grade

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-22%

Relay module dr21a01 dc 5v/10v 1-channel dpdt signal relay module polarity reversal switch board

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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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Dc 12v 4 channel time delay rs485 relay module modbus & at control remote switch

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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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Ootdty ac 220v trigger delay switch turn on off board timer relay module plc adjustable dropshipping

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

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

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Dc 8-36v 4-channel multi-function relay delay / self-locking / cycle / timing / linkage / control module plc diy electronics

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Dc 6v-30v 1 channel delay timing relay module high low trigger with timing/counting/voltage detection function circuit switch

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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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Dc 12v 0-5v 0-10v voltage signal generator dac converter module rs485 modbus rtu for plc measuring instruments

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Temperature and humidity transmitter rs485 serial communica temperature sensors sht20 modbus rtu acquisition module transducer

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Mrc-25d61z05 5v plc electromagnetic interface relay module control board 6a ultra-thin plc relay

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

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

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

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Dc 12v multifunction self-lock relay plc cycle timer module delay time switch

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Tzt 8 channels seriel port relay module 8-input 8-outout controller board computer control relay cnc

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1-channel relay 1 road relay module 12v low level trigger relay expansion board have a single way 1 channel relay

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Ad22b04 12v 4 channel dtmf tone signal decoder relay plc decoder relay discount

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Mrc-25d51c24 plc electromagnetic contact interface rail mount relay module with led indicator for programmable logic controller

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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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12v 2ch multi-function delay relay timer control switch led plc home lamp motor

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