购买 arduino 4 relays shield

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$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
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4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
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Relay Output Module: 4-pt, 6-240 VAC/6-27 VDC (PN# C0-04TRS)
Automation Direct
10
$68.00
Relay Output Module: 4-pt, 6-240 VAC/6-27 VDC (PN# C0-04TRS)
Automation Direct
10
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JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
Amazon.com
折扣 12%
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JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
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DWEII 4Pack 4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
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DWEII 4Pack 4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
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4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
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73
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4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
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73
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Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
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71
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Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
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71
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MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
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MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
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$6.09
2 Channel Relay Module With Optocoupler High Low Level Expansion Board Fault-Tolerant Design Module(5V),Module
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2 Channel Relay Module With Optocoupler High Low Level Expansion Board Fault-Tolerant Design Module(5V),Module
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2 Pcs 5V 2 Channel DC 5V Relay Module With Optocoupler High/Low Level Trigger Expansion Board
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236
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2 Pcs 5V 2 Channel DC 5V Relay Module With Optocoupler High/Low Level Trigger Expansion Board
Amazon.com
236
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$4.03
1 2 4 8 Channel 5V/12V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
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1 2 4 8 Channel 5V/12V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$0.50
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino For R3 Mega 2560
Alibaba B2B
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4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino For R3 Mega 2560
Alibaba B2B
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$15.99
12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V/3.3V Relay Power Switch Board For
Amazon.com
3
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12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V/3.3V Relay Power Switch Board For
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1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module For Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official
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25
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1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module For Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official
Amazon.com
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4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
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4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
Amazon.com
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$3.42
5V 4 Four Channel Module Relay Shield Interface For Arduino Signal Control Power Expansion Drive
Aliexpress
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5V 4 Four Channel Module Relay Shield Interface For Arduino Signal Control Power Expansion Drive
Aliexpress
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4-Channel For Arduino Relay Module Board Shield 5V 12V 24V Optocoupler Support High And Low Level Trigger
Alibaba B2B
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4-Channel For Arduino Relay Module Board Shield 5V 12V 24V Optocoupler Support High And Low Level Trigger
Alibaba B2B
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5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
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5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
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KNACRO 4-Channel DC 5V Relay Module High-Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V For PLC Automation Control, Industrial
Amazon.com
$18.99
KNACRO 4-Channel DC 5V Relay Module High-Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V For PLC Automation Control, Industrial
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CNC Shield V2 V3 V4 Development Board For A4988 Stepper Motor Driver For 3D Printer (V3)
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CNC Shield V2 V3 V4 Development Board For A4988 Stepper Motor Driver For 3D Printer (V3)
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Solid State Relay Module 5V 4 Channel High Level Trigger With Fuse Mini DIY Relay For Industrial Electronic (5V 4 Channel)
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Solid State Relay Module 5V 4 Channel High Level Trigger With Fuse Mini DIY Relay For Industrial Electronic (5V 4 Channel)
Amazon.com
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1 2 4 8 Channel 5V 12V Relay Module With Optocoupler, High Low Level Trigger Shield For Arduino PIC
Aliexpress
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1 2 4 8 Channel 5V 12V Relay Module With Optocoupler, High Low Level Trigger Shield For Arduino PIC
Aliexpress
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1-10Pcs 5V 4 Channel Relay Shield Module For Arduino R3 ARM PIC AVR DSP Electronic 4 Channel Relay
Aliexpress
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1-10Pcs 5V 4 Channel Relay Shield Module For Arduino R3 ARM PIC AVR DSP Electronic 4 Channel Relay
Aliexpress
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4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For Arduino UNO R3 Mega 2560
Alibaba B2B
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4 Channel 5V Relay Shield Module Four Channel Relay Control Board Relay Expansion Board For Arduino UNO R3 Mega 2560
Alibaba B2B
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5V 4-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic. 2 WAY 12V Relay. General Purpose Relays.
eBay
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5V 4-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic. 2 WAY 12V Relay. General Purpose Relays.
eBay
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JQC-3FF-S-Z Relay 5V Low Level Trigger One 1 Channel Relay Module Interface Board Shield For PIC AVR DSP ARM MCU Arduino
Amazon.com
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JQC-3FF-S-Z Relay 5V Low Level Trigger One 1 Channel Relay Module Interface Board Shield For PIC AVR DSP ARM MCU Arduino
Amazon.com
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5V 9V 12V 24V 1 2 4 Channel Relay Module Board Shield For Arduino With Optocoupler Support High And
Aliexpress
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5V 9V 12V 24V 1 2 4 Channel Relay Module Board Shield For Arduino With Optocoupler Support High And
Aliexpress
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Solid State Relay Module, 1 Channel DC 5V/12V 2A SSR Module Board With Low Level Trigger(5V)
Amazon.com
$8.48
Solid State Relay Module, 1 Channel DC 5V/12V 2A SSR Module Board With Low Level Trigger(5V)
Amazon.com
$10.97
8 Channel 5V Relay Module With Optocoupler Isolation Support High And Low Level Red Board
Amazon.com
105
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8 Channel 5V Relay Module With Optocoupler Isolation Support High And Low Level Red Board
Amazon.com
105
$21.99
SIM900 GPRS GSM Shield Development Board Quad-Band Module Kit For Arduino
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SIM900 GPRS GSM Shield Development Board Quad-Band Module Kit For Arduino
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$6.88
DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
Amazon.com
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DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino
Amazon.com
$26.59
$37.98
2 PCS IO22C042 DC 5-24V 4 Channel Pro Mini PLC Board Relay Shield Module For Arduino Multifunction
Aliexpress
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2 PCS IO22C042 DC 5-24V 4 Channel Pro Mini PLC Board Relay Shield Module For Arduino Multifunction
Aliexpress
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Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi EU
SainSmart.com
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Sainsmart 4-Channel 5V Relay Module For Arduino Raspberry Pi EU
SainSmart.com
$73.00
Relay Output Module: 4-pt, 5-30 VDC/5-264 VAC (PN# P1-04TRS)
Automation Direct
$73.00
Relay Output Module: 4-pt, 5-30 VDC/5-264 VAC (PN# P1-04TRS)
Automation Direct
$2.66
$3.17
TZT 1/3PCS 4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board
Aliexpress
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TZT 1/3PCS 4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board
Aliexpress
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$5.07
5V Relay 1 2 4 Channel For OMRON SSR High Low Level Solid State Relay Module 250V 2A For Arduino
Aliexpress
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$2.56
$5.07
5V Relay 1 2 4 Channel For OMRON SSR High Low Level Solid State Relay Module 250V 2A For Arduino
Aliexpress
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$22.80
Screw Terminal Block Breakout Shield Module For Arduino UNO R3
Amazon.com
89
$20.99
$22.80
Screw Terminal Block Breakout Shield Module For Arduino UNO R3
Amazon.com
89
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购买 arduino 4 relays shield

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$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
5
$9.99
4Pcs 4 Channel 5V Relay Module With Optocoupler For R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 For Raspberry Pi
Amazon.com
5
$68.00
Relay Output Module: 4-pt, 6-240 VAC/6-27 VDC (PN# C0-04TRS)
Automation Direct
10
$68.00
Relay Output Module: 4-pt, 6-240 VAC/6-27 VDC (PN# C0-04TRS)
Automation Direct
10
$7.01
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
Amazon.com
折扣 12%
$7.01
$7.97
JESSINIE 5V 4-Channel Relay Module With Optocoupler Isolation, Supports High And Low Level Trigger, Compatible With Arduino And Raspberry Pi For DIY
Amazon.com
$15.99
DWEII 4Pack 4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
Amazon.com
1
$15.99
DWEII 4Pack 4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Red Board For Raspberry Pi Arduino
Amazon.com
1
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4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
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73
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4 Channel 12V Relay Module With Optocoupler High Or Low Level Trigger Expansion Board(2PCS) (4 Channel 12V Relay, 4 Channel 12V Relay)
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Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
71
$7.99
Hiletgo 4 Channel 24V Relay Module With OPTO-Isolated Support High And Low Level Trigger For PLC Automation Equipment Control
Amazon.com
71
$11.89
MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
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MECCANIXITY Relay Module 6 Channel 5V Low Level Trigger Module Blue Relay Module Board For DSP
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2 Channel Relay Module With Optocoupler High Low Level Expansion Board Fault-Tolerant Design Module(5V),Module
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2 Channel Relay Module With Optocoupler High Low Level Expansion Board Fault-Tolerant Design Module(5V),Module
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2 Pcs 5V 2 Channel DC 5V Relay Module With Optocoupler High/Low Level Trigger Expansion Board
Amazon.com
236
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2 Pcs 5V 2 Channel DC 5V Relay Module With Optocoupler High/Low Level Trigger Expansion Board
Amazon.com
236
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$4.03
1 2 4 8 Channel 5V/12V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
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$4.03
1 2 4 8 Channel 5V/12V Relay Module Board Shield With Optocoupler Support High And Low Level
Aliexpress
$0.50
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino For R3 Mega 2560
Alibaba B2B
Free shipping
$0.50
4 Channel 5V Relay Shield Module, Four Channel Relay Control Board Relay Expansion Board For Arduino For R3 Mega 2560
Alibaba B2B
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$15.99
12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V/3.3V Relay Power Switch Board For
Amazon.com
3
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12Pcs 1 Channel Optocoupler Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board 3V/3.3V Relay Power Switch Board For
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1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module For Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official
Amazon.com
25
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1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module For Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official
Amazon.com
25
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4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
Amazon.com
$15.09
4 Channel Relay Module DC 12V 30A Relay Module With Optocoupler Isolation
Amazon.com
$1.74
$3.42
5V 4 Four Channel Module Relay Shield Interface For Arduino Signal Control Power Expansion Drive
Aliexpress
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5V 4 Four Channel Module Relay Shield Interface For Arduino Signal Control Power Expansion Drive
Aliexpress
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4-Channel For Arduino Relay Module Board Shield 5V 12V 24V Optocoupler Support High And Low Level Trigger
Alibaba B2B
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4-Channel For Arduino Relay Module Board Shield 5V 12V 24V Optocoupler Support High And Low Level Trigger
Alibaba B2B
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5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
Aliexpress
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5V 12V 1 2 4 6 8 Way Relay Module For Arduino 1 2 4 6 8 Channel Relay Module With Optocoupler Relay
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KNACRO 4-Channel DC 5V Relay Module High-Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V For PLC Automation Control, Industrial
Amazon.com
$18.99
KNACRO 4-Channel DC 5V Relay Module High-Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V For PLC Automation Control, Industrial
Amazon.com