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4-channel solid-state relay module/high or low level trigger/60V/3A optocoupler isolation output/level conversion 4-channel solid-state relay module/high or low level trigger/60V/3A optocoupler isolation output/level conversion

4-channel solid-state relay module/high or low level trigger/60V/3A optocoupler isolation output/level conversion

$148.00$148.00

8% off
AC 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler with light couple red display AC 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler with light couple red display

AC 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler with light couple red display

$21.48$23.51

5 sold
7% off
Nuvoton N76E003 MCU Development Board MS51FB9AE Digital Tube LED IR Optocoupler RS485 Relay Module Nuvoton N76E003 MCU Development Board MS51FB9AE Digital Tube LED IR Optocoupler RS485 Relay Module

Nuvoton N76E003 MCU Development Board MS51FB9AE Digital Tube LED IR Optocoupler RS485 Relay Module

$188.25$204.25

5% off
WP8026ADAM ( 16DI ) _ Digital input module / Optocoupler isolated / RS485 MODBUS RTU communications WP8026ADAM ( 16DI ) _ Digital input module / Optocoupler isolated / RS485 MODBUS RTU communications

WP8026ADAM ( 16DI ) _ Digital input module / Optocoupler isolated / RS485 MODBUS RTU communications

$27.88$29.35

41% off
8-Channel Time Delay Relay Module 8-36V with Optocoupler & LED - Multifunctional Relay Board 8-Channel Time Delay Relay Module 8-36V with Optocoupler & LED - Multifunctional Relay Board

8-Channel Time Delay Relay Module 8-36V with Optocoupler & LED - Multifunctional Relay Board

$190.03$322.08

MRI-24D05 100KHZ Optocoupler Relay LED Turn Signal 24VDC 8mA Input Output 4-18VDC 50mA Interface Voltage Relay Module DIN Rail MRI-24D05 100KHZ Optocoupler Relay LED Turn Signal 24VDC 8mA Input Output 4-18VDC 50mA Interface Voltage Relay Module DIN Rail

MRI-24D05 100KHZ Optocoupler Relay LED Turn Signal 24VDC 8mA Input Output 4-18VDC 50mA Interface Voltage Relay Module DIN Rail

$23.21$23.21

1 sold
44% off
36V Relay Module 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED Multifunction Relay Relay 36V Relay Module 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED Multifunction Relay Relay

36V Relay Module 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED Multifunction Relay Relay

$148.43$265.05

31% off
2CH-24CH DIN-Rail Optocoupler Isolated Pluggable Relay Module Contact Capacity Maximum 16A Control:12V/24V Trigger Signal:12V 2CH-24CH DIN-Rail Optocoupler Isolated Pluggable Relay Module Contact Capacity Maximum 16A Control:12V/24V Trigger Signal:12V

2CH-24CH DIN-Rail Optocoupler Isolated Pluggable Relay Module Contact Capacity Maximum 16A Control:12V/24V Trigger Signal:12V

$161.53$234.10

1 sold
19% off
mach3 5 axis CNC stepper motor controller board 12-60VDC power supply Breakout Board(High-speed optocoupler) + one DB25 caple mach3 5 axis CNC stepper motor controller board 12-60VDC power supply Breakout Board(High-speed optocoupler) + one DB25 caple

mach3 5 axis CNC stepper motor controller board 12-60VDC power supply Breakout Board(High-speed optocoupler) + one DB25 caple

$21.86$26.99

2 sold
4% off
DC 8V To 36V LED 8 Channel Way Multifunction Relay Module Wide Voltage Supply Module with Optocoupler Industrial Grade 12V 24V DC 8V To 36V LED 8 Channel Way Multifunction Relay Module Wide Voltage Supply Module with Optocoupler Industrial Grade 12V 24V

DC 8V To 36V LED 8 Channel Way Multifunction Relay Module Wide Voltage Supply Module with Optocoupler Industrial Grade 12V 24V

$26.58$27.86

32% off
8 Channels 24V 1NO + 1NC Optocoupler Isolation Relay Module Supply Voltage DC 24V Trigger Signal DC 3.3V 5V 12V 24V 8 Channels 24V 1NO + 1NC Optocoupler Isolation Relay Module Supply Voltage DC 24V Trigger Signal DC 3.3V 5V 12V 24V

8 Channels 24V 1NO + 1NC Optocoupler Isolation Relay Module Supply Voltage DC 24V Trigger Signal DC 3.3V 5V 12V 24V

$25.13$36.95

2 sold
15% off
DC 12v 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board DC 12v 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

DC 12v 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

$19.49$22.93

5% off
DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100 DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

$175.72$183.22

15% off
4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor trigger voltage 5V 4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor trigger voltage 5V

4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor trigger voltage 5V

$23.37$27.50

8% off
High Speed NPN to PNP PNP to NPN Optocoupler Isolated 3.3 5V 12 24V Pulse Signal Converter High Speed NPN to PNP PNP to NPN Optocoupler Isolated 3.3 5V 12 24V Pulse Signal Converter

High Speed NPN to PNP PNP to NPN Optocoupler Isolated 3.3 5V 12 24V Pulse Signal Converter

$181.60$197.39

1 sold
5% off
DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100 DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

$195.67$204.22

7% off
MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module

MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module

$180.86$195.91

1 PCS DC 5V-23V RS485 Modbus Rtu Temperature & humidity sensor Remote acquisition monitor replace DHT11 DHT22 DS18B20 PT100 1 PCS DC 5V-23V RS485 Modbus Rtu Temperature & humidity sensor Remote acquisition monitor replace DHT11 DHT22 DS18B20 PT100

1 PCS DC 5V-23V RS485 Modbus Rtu Temperature & humidity sensor Remote acquisition monitor replace DHT11 DHT22 DS18B20 PT100

$176.30$176.30

14% off
N722A04 Nuvoton C51 MCU N76E003 MCU Development Board MS51FB9AE LED Infrared Remote Control Optocoupler LED RS485 Relay Module N722A04 Nuvoton C51 MCU N76E003 MCU Development Board MS51FB9AE LED Infrared Remote Control Optocoupler LED RS485 Relay Module

N722A04 Nuvoton C51 MCU N76E003 MCU Development Board MS51FB9AE LED Infrared Remote Control Optocoupler LED RS485 Relay Module

$202.96$236.00

Mach3 engraving machine 5-axis stepper motor driver interface board control board with optocoupler isolation and USB cable Mach3 engraving machine 5-axis stepper motor driver interface board control board with optocoupler isolation and USB cable

Mach3 engraving machine 5-axis stepper motor driver interface board control board with optocoupler isolation and USB cable

$25.89$25.89

22% off
1Pcs New relay 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240 1Pcs New relay 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

1Pcs New relay 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

$28.24$36.20

4% off
1pcs 8DI 8DO Digital input and output module Optocoupler isolated / RS485 MODBUS RTU communications Wellpro WP8028ADAM 1pcs 8DI 8DO Digital input and output module Optocoupler isolated / RS485 MODBUS RTU communications Wellpro WP8028ADAM

1pcs 8DI 8DO Digital input and output module Optocoupler isolated / RS485 MODBUS RTU communications Wellpro WP8028ADAM

$27.70$28.85

1 sold
15% off
DC 24V 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board DC 24V 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

DC 24V 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

$19.49$22.93

Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS 8Ch DC 7-30V RTU PLC Expansion Board Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS 8Ch DC 7-30V RTU PLC Expansion Board

Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS 8Ch DC 7-30V RTU PLC Expansion Board

$207.41$207.41

31% off
2-24CH 1NO+1NC 24V Trigger Voltage Optocoupler Isolated Relay Module 16A BMZ-K1-E for Microcontroller, Raspberry Pi 2-24CH 1NO+1NC 24V Trigger Voltage Optocoupler Isolated Relay Module 16A BMZ-K1-E for Microcontroller, Raspberry Pi

2-24CH 1NO+1NC 24V Trigger Voltage Optocoupler Isolated Relay Module 16A BMZ-K1-E for Microcontroller, Raspberry Pi

$156.97$227.50

30% off
RS485 8Ch DC 7-30V Safety Barrier Shell Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board RS485 8Ch DC 7-30V Safety Barrier Shell Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

RS485 8Ch DC 7-30V Safety Barrier Shell Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

$189.00$270.00

18% off
IO Card PLC 4-32 Channels Interface Relay Module PNP NPN Input Optocoupler Isolation Transistor trigger voltage 3.3v IO Card PLC 4-32 Channels Interface Relay Module PNP NPN Input Optocoupler Isolation Transistor trigger voltage 3.3v

IO Card PLC 4-32 Channels Interface Relay Module PNP NPN Input Optocoupler Isolation Transistor trigger voltage 3.3v

$18.94$23.10

1 sold
1PCS/Lot Original New 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240 1PCS/Lot Original New 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

1PCS/Lot Original New 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

$227.64$227.64

8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

$210.41$210.41

100pcs Speed Sensor Module Tacho Sensor Slot-type Optocoupler Tacho-generator Counter Module for Diy Kit 100pcs Speed Sensor Module Tacho Sensor Slot-type Optocoupler Tacho-generator Counter Module for Diy Kit

100pcs Speed Sensor Module Tacho Sensor Slot-type Optocoupler Tacho-generator Counter Module for Diy Kit

$30.00$30.00

2 sold
（Brand New Original）1pcs/lot 100% original genuine relay:2900445 PLC-BPT-24DC/21 2966595 Optocoupler Solid-state relay

（Brand New Original）1pcs/lot 100% original genuine relay:2900445 PLC-BPT-24DC/21 2966595 Optocoupler Solid-state relay

$180.00$180.00

MRI-24D24/100KHZ-R High Frequency Optocoupler Relay 24VDC 8mA Input Output 14-30VDC 50mA Interface Voltage Relay Module DIN Rail MRI-24D24/100KHZ-R High Frequency Optocoupler Relay 24VDC 8mA Input Output 14-30VDC 50mA Interface Voltage Relay Module DIN Rail

MRI-24D24/100KHZ-R High Frequency Optocoupler Relay 24VDC 8mA Input Output 14-30VDC 50mA Interface Voltage Relay Module DIN Rail

$25.00$25.00

7% off
8Ch RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board DC 7-30V Safety Barrier Shell 8Ch RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board DC 7-30V Safety Barrier Shell

8Ch RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board DC 7-30V Safety Barrier Shell

$186.22$201.71

1 sold
21% off
4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor tigger voltage 24V 4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor tigger voltage 24V

4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor tigger voltage 24V

$21.72$27.50

14 sold
44% off
8-Channel Multifunction Time Delay Relay Module 8-36V with Optocoupler & LED Latching for Smart Automation 8-Channel Multifunction Time Delay Relay Module 8-36V with Optocoupler & LED Latching for Smart Automation

8-Channel Multifunction Time Delay Relay Module 8-36V with Optocoupler & LED Latching for Smart Automation

$164.75$294.20

4-channel solid-state relay module/high or low level trigger/60V/3A optocoupler isolation output/level conversion 4-channel solid-state relay module/high or low level trigger/60V/3A optocoupler isolation output/level conversion

4-channel solid-state relay module/high or low level trigger/60V/3A optocoupler isolation output/level conversion

$148.00 $148.00

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
8% off
AC 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler with light couple red display AC 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler with light couple red display

AC 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler with light couple red display

$21.48 $23.51

5 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
7% off
Nuvoton N76E003 MCU Development Board MS51FB9AE Digital Tube LED IR Optocoupler RS485 Relay Module Nuvoton N76E003 MCU Development Board MS51FB9AE Digital Tube LED IR Optocoupler RS485 Relay Module

Nuvoton N76E003 MCU Development Board MS51FB9AE Digital Tube LED IR Optocoupler RS485 Relay Module

$188.25 $204.25

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
5% off
WP8026ADAM ( 16DI ) _ Digital input module / Optocoupler isolated / RS485 MODBUS RTU communications WP8026ADAM ( 16DI ) _ Digital input module / Optocoupler isolated / RS485 MODBUS RTU communications

WP8026ADAM ( 16DI ) _ Digital input module / Optocoupler isolated / RS485 MODBUS RTU communications

$27.88 $29.35

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
41% off
8-Channel Time Delay Relay Module 8-36V with Optocoupler & LED - Multifunctional Relay Board 8-Channel Time Delay Relay Module 8-36V with Optocoupler & LED - Multifunctional Relay Board

8-Channel Time Delay Relay Module 8-36V with Optocoupler & LED - Multifunctional Relay Board

$190.03 $322.08

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
MRI-24D05 100KHZ Optocoupler Relay LED Turn Signal 24VDC 8mA Input Output 4-18VDC 50mA Interface Voltage Relay Module DIN Rail MRI-24D05 100KHZ Optocoupler Relay LED Turn Signal 24VDC 8mA Input Output 4-18VDC 50mA Interface Voltage Relay Module DIN Rail

MRI-24D05 100KHZ Optocoupler Relay LED Turn Signal 24VDC 8mA Input Output 4-18VDC 50mA Interface Voltage Relay Module DIN Rail

$23.21 $23.21

1 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
44% off
36V Relay Module 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED Multifunction Relay Relay 36V Relay Module 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED Multifunction Relay Relay

36V Relay Module 8-36V 8-channel Multifunction Time Delay Relay Interface Board Module Optocoupler LED Multifunction Relay Relay

$148.43 $265.05

Categories: Home Improvement, Electrical Equipment & Supplies

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31% off
2CH-24CH DIN-Rail Optocoupler Isolated Pluggable Relay Module Contact Capacity Maximum 16A Control:12V/24V Trigger Signal:12V 2CH-24CH DIN-Rail Optocoupler Isolated Pluggable Relay Module Contact Capacity Maximum 16A Control:12V/24V Trigger Signal:12V

2CH-24CH DIN-Rail Optocoupler Isolated Pluggable Relay Module Contact Capacity Maximum 16A Control:12V/24V Trigger Signal:12V

$161.53 $234.10

1 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
19% off
mach3 5 axis CNC stepper motor controller board 12-60VDC power supply Breakout Board(High-speed optocoupler) + one DB25 caple mach3 5 axis CNC stepper motor controller board 12-60VDC power supply Breakout Board(High-speed optocoupler) + one DB25 caple

mach3 5 axis CNC stepper motor controller board 12-60VDC power supply Breakout Board(High-speed optocoupler) + one DB25 caple

$21.86 $26.99

2 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
4% off
DC 8V To 36V LED 8 Channel Way Multifunction Relay Module Wide Voltage Supply Module with Optocoupler Industrial Grade 12V 24V DC 8V To 36V LED 8 Channel Way Multifunction Relay Module Wide Voltage Supply Module with Optocoupler Industrial Grade 12V 24V

DC 8V To 36V LED 8 Channel Way Multifunction Relay Module Wide Voltage Supply Module with Optocoupler Industrial Grade 12V 24V

$26.58 $27.86

Categories: Home Improvement, Electrical Equipment & Supplies

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32% off
8 Channels 24V 1NO + 1NC Optocoupler Isolation Relay Module Supply Voltage DC 24V Trigger Signal DC 3.3V 5V 12V 24V 8 Channels 24V 1NO + 1NC Optocoupler Isolation Relay Module Supply Voltage DC 24V Trigger Signal DC 3.3V 5V 12V 24V

8 Channels 24V 1NO + 1NC Optocoupler Isolation Relay Module Supply Voltage DC 24V Trigger Signal DC 3.3V 5V 12V 24V

$25.13 $36.95

2 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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15% off
DC 12v 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board DC 12v 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

DC 12v 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

$19.49 $22.93

Categories: Home Improvement, Electrical Equipment & Supplies

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5% off
DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100 DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

$175.72 $183.22

Categories: Home Improvement, Electrical Equipment & Supplies

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15% off
4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor trigger voltage 5V 4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor trigger voltage 5V

4-32 Channels IO Card PLC Signal Amplifier Board PNP NPN Conversion Input Optocoupler Isolation Transistor trigger voltage 5V

$23.37 $27.50

Categories: Home Improvement, Electrical Equipment & Supplies

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8% off
High Speed NPN to PNP PNP to NPN Optocoupler Isolated 3.3 5V 12 24V Pulse Signal Converter High Speed NPN to PNP PNP to NPN Optocoupler Isolated 3.3 5V 12 24V Pulse Signal Converter

High Speed NPN to PNP PNP to NPN Optocoupler Isolated 3.3 5V 12 24V Pulse Signal Converter

$181.60 $197.39

1 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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5% off
DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100 DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

DC 5V 12V 24V Digital display Modbus RTU RS485 Temperature humidity sensor Module AM2320 replace DHT11 DHT22 DS18B20 PT100

$195.67 $204.22

Categories: Home Improvement, Electrical Equipment & Supplies

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7% off
MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module

MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module

$180.86 $195.91

Categories: Home Improvement, Electrical Equipment & Supplies

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1 PCS DC 5V-23V RS485 Modbus Rtu Temperature & humidity sensor Remote acquisition monitor replace DHT11 DHT22 DS18B20 PT100 1 PCS DC 5V-23V RS485 Modbus Rtu Temperature & humidity sensor Remote acquisition monitor replace DHT11 DHT22 DS18B20 PT100

1 PCS DC 5V-23V RS485 Modbus Rtu Temperature & humidity sensor Remote acquisition monitor replace DHT11 DHT22 DS18B20 PT100

$176.30 $176.30

Categories: Home Improvement, Electrical Equipment & Supplies

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14% off
N722A04 Nuvoton C51 MCU N76E003 MCU Development Board MS51FB9AE LED Infrared Remote Control Optocoupler LED RS485 Relay Module N722A04 Nuvoton C51 MCU N76E003 MCU Development Board MS51FB9AE LED Infrared Remote Control Optocoupler LED RS485 Relay Module

N722A04 Nuvoton C51 MCU N76E003 MCU Development Board MS51FB9AE LED Infrared Remote Control Optocoupler LED RS485 Relay Module

$202.96 $236.00

Categories: Home Improvement, Electrical Equipment & Supplies

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Mach3 engraving machine 5-axis stepper motor driver interface board control board with optocoupler isolation and USB cable Mach3 engraving machine 5-axis stepper motor driver interface board control board with optocoupler isolation and USB cable

Mach3 engraving machine 5-axis stepper motor driver interface board control board with optocoupler isolation and USB cable

$25.89 $25.89

Categories: Home Improvement, Electrical Equipment & Supplies

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22% off
1Pcs New relay 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240 1Pcs New relay 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

1Pcs New relay 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

$28.24 $36.20

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
4% off
1pcs 8DI 8DO Digital input and output module Optocoupler isolated / RS485 MODBUS RTU communications Wellpro WP8028ADAM 1pcs 8DI 8DO Digital input and output module Optocoupler isolated / RS485 MODBUS RTU communications Wellpro WP8028ADAM

1pcs 8DI 8DO Digital input and output module Optocoupler isolated / RS485 MODBUS RTU communications Wellpro WP8028ADAM

$27.70 $28.85

1 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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15% off
DC 24V 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board DC 24V 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

DC 24V 10 channels Optocoupler isolation Relay Interface Module tigger voltage 3.3V 5V 12v 24V PLC Signal Amplification Board

$19.49 $22.93

Categories: Home Improvement, Electrical Equipment & Supplies

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Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS 8Ch DC 7-30V RTU PLC Expansion Board Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS 8Ch DC 7-30V RTU PLC Expansion Board

Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS 8Ch DC 7-30V RTU PLC Expansion Board

$207.41 $207.41

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
31% off
2-24CH 1NO+1NC 24V Trigger Voltage Optocoupler Isolated Relay Module 16A BMZ-K1-E for Microcontroller, Raspberry Pi 2-24CH 1NO+1NC 24V Trigger Voltage Optocoupler Isolated Relay Module 16A BMZ-K1-E for Microcontroller, Raspberry Pi

2-24CH 1NO+1NC 24V Trigger Voltage Optocoupler Isolated Relay Module 16A BMZ-K1-E for Microcontroller, Raspberry Pi

$156.97 $227.50

Categories: Home Improvement, Electrical Equipment & Supplies

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30% off
RS485 8Ch DC 7-30V Safety Barrier Shell Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board RS485 8Ch DC 7-30V Safety Barrier Shell Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

RS485 8Ch DC 7-30V Safety Barrier Shell Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

$189.00 $270.00

Categories: Home Improvement, Electrical Equipment & Supplies

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18% off
IO Card PLC 4-32 Channels Interface Relay Module PNP NPN Input Optocoupler Isolation Transistor trigger voltage 3.3v IO Card PLC 4-32 Channels Interface Relay Module PNP NPN Input Optocoupler Isolation Transistor trigger voltage 3.3v

IO Card PLC 4-32 Channels Interface Relay Module PNP NPN Input Optocoupler Isolation Transistor trigger voltage 3.3v

$18.94 $23.10

1 sold

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
1PCS/Lot Original New 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240 1PCS/Lot Original New 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

1PCS/Lot Original New 34.81.7.024.8240 DC controlled AC solid state optocoupler relay 348170248240

$227.64 $227.64

Categories: Home Improvement, Electrical Equipment & Supplies

Buy Now
8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board

$210.41 $210.41

Categories: Home Improvement, Electrical Equipment & Supplies

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100pcs Speed Sensor Module Tacho Sensor Slot-type Optocoupler Tacho-generator Counter Module for Diy Kit 100pcs Speed Sensor Module Tacho Sensor Slot-type Optocoupler Tacho-generator Counter Module for Diy Kit

100pcs Speed Sensor Module Tacho Sensor Slot-type Optocoupler Tacho-generator Counter Module for Diy Kit

$30.00 $30.00

2 sold

Categories: Home Improvement, Electrical Equipment & Supplies

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8-Channel Multifunction Time Delay Relay Module 8-36V with Optocoupler & LED Latching for Smart Automation 8-Channel Multifunction Time Delay Relay Module 8-36V with Optocoupler & LED Latching for Smart Automation

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