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$91.00

Relay/analog Combo Module: 3-pt out, 1-ch in, 1-ch out (PN# CFW320-IOAR)

Automation Direct

$91.00

Relay/analog Combo Module: 3-pt out, 1-ch in, 1-ch out (PN# CFW320-IOAR)

Automation Direct

$68.00

Relay/analog Combo Module: 4-pt in, 2-pt out, 1-ch in, 1-ch out (PN# 14741859)

Automation Direct

$68.00

Relay/analog Combo Module: 4-pt in, 2-pt out, 1-ch in, 1-ch out (PN# 14741859)

Automation Direct

$230.00

Relay/analog Combo Module: 6-pt in, 3-pt out, 3-ch in, 2-ch out (PN# AS3-ACI)

Automation Direct

$230.00

Relay/analog Combo Module: 6-pt in, 3-pt out, 3-ch in, 2-ch out (PN# AS3-ACI)

Automation Direct

$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

$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

$67.00

Relay Output Module: 3-pt, 250 VAC/30 VDC (PN# GS30A-03TRA)

Automation Direct

$67.00

Relay Output Module: 3-pt, 250 VAC/30 VDC (PN# GS30A-03TRA)

Automation Direct

$112.00

Relay/analog Combo Module: 6-pt in, 4-pt out, 3-ch in, 2-ch out (PN# 14742129)

Automation Direct

$112.00

Relay/analog Combo Module: 6-pt in, 4-pt out, 3-ch in, 2-ch out (PN# 14742129)

Automation Direct

$248.00

Relay/analog Combo Module: 3-pt in, 2-pt out, 2-ch in, 1-ch out (PN# ACN-EIO)

Automation Direct

$248.00

Relay/analog Combo Module: 3-pt in, 2-pt out, 2-ch in, 1-ch out (PN# ACN-EIO)

Automation Direct

$111.00

Relay Output Module: 6-pt, 5-30 VDC/5-264 VAC (PN# P2-06TRS)

Automation Direct

$111.00

Relay Output Module: 6-pt, 5-30 VDC/5-264 VAC (PN# P2-06TRS)

Automation Direct

$14.99

Relay 4 Zero 3V 4 Channel Relay Shield For Raspberry Pi, Relay HAT Expansion Relay Board For Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero And Zero W | Power

Amazon.com

$14.99

Relay 4 Zero 3V 4 Channel Relay Shield For Raspberry Pi, Relay HAT Expansion Relay Board For Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero And Zero W | Power

Amazon.com

$63.00

Relay Output Module: 6-pt, 250 VAC/30 VDC (PN# GS4-06TR)

Automation Direct

$63.00

Relay Output Module: 6-pt, 250 VAC/30 VDC (PN# GS4-06TR)

Automation Direct

$112.00

Relay Output Module: 8-pt, 125 VDC/250 VAC (PN# XBE-RY08B)

Automation Direct

$112.00

Relay Output Module: 8-pt, 125 VDC/250 VAC (PN# XBE-RY08B)

Automation Direct

$120.28

($60.14/Pc) TN2-H-3V Panasonic Electronic Components Electromechanical Relay 3VDC 64.3Ohm 1A DPDT (14X5.6X9.8)Mm THT General Purpose Relay

Onlinecomponents.com

$120.28

($60.14/Pc) TN2-H-3V Panasonic Electronic Components Electromechanical Relay 3VDC 64.3Ohm 1A DPDT (14X5.6X9.8)Mm THT General Purpose Relay

Onlinecomponents.com

$100.00

($2.00/Pc) TQ2SL-3V Panasonic Electronic Components Signal Relay 3VDC 2A DPDT(14X11.5X7.5)Mm SMD

Onlinecomponents.com

$100.00

($2.00/Pc) TQ2SL-3V Panasonic Electronic Components Signal Relay 3VDC 2A DPDT(14X11.5X7.5)Mm SMD

Onlinecomponents.com

$67.00

Relay Output Module: 8-pt, 6-27 VDC/6-240 VAC (PN# C0-08TR-3)

Automation Direct

$67.00

Relay Output Module: 8-pt, 6-27 VDC/6-240 VAC (PN# C0-08TR-3)

Automation Direct

$10.20

3V 1/2/4/8 Channel Relay Module - High & Low Level Trigger, Dual Optocoupler Isolation (3V, 4 Channel)

Amazon.com

$10.20

3V 1/2/4/8 Channel Relay Module - High & Low Level Trigger, Dual Optocoupler Isolation (3V, 4 Channel)

Amazon.com

$62.00

Relay Output Module: 2-pt, 240 VAC/30 VDC (PN# GS30A-02TRC)

Automation Direct

$62.00

Relay Output Module: 2-pt, 240 VAC/30 VDC (PN# GS30A-02TRC)

Automation Direct

$43.51

XLUYCELH 3.3V 3V 2 Channel Relay Module With Optocoupler Relay Output 2 Way Relay Module For

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Free shipping

$43.51

XLUYCELH 3.3V 3V 2 Channel Relay Module With Optocoupler Relay Output 2 Way Relay Module For

Amazon.com

$8.03

Small Relay Module, 3.3V 5V Relay Board For AC DC Control 0 250V With NO NC Light Indicator For Efficient, Relays (3 Ways)

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Free shipping

$8.03

Small Relay Module, 3.3V 5V Relay Board For AC DC Control 0 250V With NO NC Light Indicator For Efficient, Relays (3 Ways)

Amazon.com

$9.99

AEDIKO 6Pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board

Amazon.com

$9.99

AEDIKO 6Pcs 1 Channel Relay Module DC 3V/3.3V High Level Driver Optocoupler Module Isolated Drive Control Board

Amazon.com

$11.99

Teyleten Robot DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module For Arduino (Pack Of

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192

$11.99

Teyleten Robot DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module For Arduino (Pack Of

Amazon.com

$9.98

Podazz 5Pcs DC 1-Channel Optocoupler 3V/3.3V Relay High Level Driver Module, Isolated Driver Controller Board For Arduino 3V/3.3V Relay Module

Amazon.com

$9.98

Podazz 5Pcs DC 1-Channel Optocoupler 3V/3.3V Relay High Level Driver Module, Isolated Driver Controller Board For Arduino 3V/3.3V Relay Module

Amazon.com

$123.50

($2.47/Pc) TQ2SS-L2-3V Panasonic Electronic Components Signal Relay 3VDC 2A DPDT(14X9.3X7.5)Mm SMD

Onlinecomponents.com

$123.50

($2.47/Pc) TQ2SS-L2-3V Panasonic Electronic Components Signal Relay 3VDC 2A DPDT(14X9.3X7.5)Mm SMD

Onlinecomponents.com

$7.99

Digiyes 4Pcs 1 Channel DC 3V / 3.3V Relay High Level Driver Module Optocoupler Isolated Driver Control Module

Amazon.com

$7.99

Digiyes 4Pcs 1 Channel DC 3V / 3.3V Relay High Level Driver Module Optocoupler Isolated Driver Control Module

Amazon.com

$190.00

Relay Output Module: 16-pt, 6-24 VDC/6-240 VAC (PN# P3-16TR)

Automation Direct

$190.00

Relay Output Module: 16-pt, 6-24 VDC/6-240 VAC (PN# P3-16TR)

Automation Direct

$6.88

DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino

Amazon.com

$6.88

DC 5V 3 Channel Relay Module Relay Expansion Board With Optocoupler Insulation Compatible 3.3V 5V Signal For Arduino

Amazon.com

$13.99

AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module With Optocoupler Opto Isolation High Level Trigger For IOT ESP8266 Development Board

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127

$13.99

AITRIP 8 Pack 3V 1 Channel Relay Power Switch Module With Optocoupler Opto Isolation High Level Trigger For IOT ESP8266 Development Board

Amazon.com

$65.89

Lclctc (10Pcs) Solid State Relay DD 3.3V 3V 5V 12V 24V 1.5A,Signal Relay For PLC,No Contact DC To Dcinput:3-32Vdcoutput:5-60Vdcdin Rail

Amazon.com

Free shipping

$65.89

Lclctc (10Pcs) Solid State Relay DD 3.3V 3V 5V 12V 24V 1.5A,Signal Relay For PLC,No Contact DC To Dcinput:3-32Vdcoutput:5-60Vdcdin Rail

Amazon.com

$9.89

(2Pcs)12V 5V 3V 3.3V Solid State Relay 41Fda,Dc To Ac,Input 3-32Vdc,Output 24-250VAC,0.8Amp,Non-Contact,Mini,Slim,Micro For ESP32 Raspberry Pi

Amazon.com

$9.89

(2Pcs)12V 5V 3V 3.3V Solid State Relay 41Fda,Dc To Ac,Input 3-32Vdc,Output 24-250VAC,0.8Amp,Non-Contact,Mini,Slim,Micro For ESP32 Raspberry Pi

Amazon.com

$3.19

DC 3V 5V 24V 2 Channel Relay Module With Optocoupler Relay Output 2 Way Relay Module For Arduino AVR

AliExpress

$3.19

DC 3V 5V 24V 2 Channel Relay Module With Optocoupler Relay Output 2 Way Relay Module For Arduino AVR

AliExpress

$9.99

Fushionsea DC 3.7V 5V 6V 7V 9V 12V Mini Relay Wireless Remote Momentary Switch, 3V -12V Small PCB 433Mhz RF Transmitter Battery Power Circuit Micro

Amazon.com

$9.99

Fushionsea DC 3.7V 5V 6V 7V 9V 12V Mini Relay Wireless Remote Momentary Switch, 3V -12V Small PCB 433Mhz RF Transmitter Battery Power Circuit Micro

Amazon.com

$3.33

1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED

AliExpress

$3.33

1PCS 1/2/4 Channel 3V Relay Module Board Low Level Trigger Relay Output Relay Module With LED

AliExpress

$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

$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

$1.97

$3.90

3V 1/2/4-Channel Relay Module Low-Level Trigger Module Compatible With Arduino Etc.

AliExpress

49% off

$1.97

$3.90

3V 1/2/4-Channel Relay Module Low-Level Trigger Module Compatible With Arduino Etc.

AliExpress

$7.99

Weasch 10Pcs PCB Power Relay JQC-3F(T73), DC 3V Coil, 7A 240VAC, SPDT, 5 Pins (10)

Amazon.com

$7.99

Weasch 10Pcs PCB Power Relay JQC-3F(T73), DC 3V Coil, 7A 240VAC, SPDT, 5 Pins (10)

Amazon.com

$0.40

$0.60

3V 1 2 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 1 2 4 Way Relay Module For

AliExpress

33% off

$0.40

$0.60

3V 1 2 4 Channel Relay Module Low Level Trigger With Lamp Relay Output 1 2 4 Way Relay Module For

AliExpress

$2.15

3V 1/2/4 Channel Relay Module 250V Max Low Level Trigger With Indicator 8550 Triode Relay Board For

AliExpress

$2.15

3V 1/2/4 Channel Relay Module 250V Max Low Level Trigger With Indicator 8550 Triode Relay Board For

AliExpress

ESP32 Relay Module - Control AC Appliances (Web Server) | Rando…

Dec 18, 2019

randomnerdtutorials.com

5V Relay Module Mod to Work With Raspberry Pi

Oct 1, 2020

instructables.com

[SOLVED] Jumpers? - 3V 1 Channel Relay Power Switch Module

Feb 9, 2020

allaboutcircuits.com

Interfacing Relay with Raspberry Pi: A Beginner's Guide | Robu.in

Mar 11, 2020

robu.in

1CH Active H/L 3V OptoCoupler Relay Module

Aug 2, 2021

cytron.io

2CH Active H/L 3V OptoCoupler Relay Module

Aug 13, 2021

cytron.io