How to Make a 2 Channel DIY Relay Module

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$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

$61.00

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

Automation Direct

$61.00

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

Automation Direct

$15.84

Relay Module 30A High Power 2-Channel AC100V-250V DC 5V High Current High Low Level Trigger Switch Module

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$15.84

Relay Module 30A High Power 2-Channel AC100V-250V DC 5V High Current High Low Level Trigger Switch Module

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$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

$5.99

NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board

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$5.99

NOYITO 9V 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board

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$9.99

DAOKI 5PCS 2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board Compatible With Arduino

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$9.99

DAOKI 5PCS 2 Channel DC 5V Relay Module With Optocoupler Low Level Trigger Expansion Board Compatible With Arduino

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$6.50

Shillehtek 2-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial

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$6.50

Shillehtek 2-Channel 24V Relay Module - High & Low Level Trigger Relay Controller Board For Arduino, Raspberry Pi, PLC, Home Automation, Industrial

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$13.74

Fafeicy 2-Channel Serial Port Relay Module, RS232 UART Protocol DB9 Interface, Manual Operation, Relay Switch Board, Copper Contacts, Normally Open

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$13.74

Fafeicy 2-Channel Serial Port Relay Module, RS232 UART Protocol DB9 Interface, Manual Operation, Relay Switch Board, Copper Contacts, Normally Open

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$2.71

5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)

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$2.71

5V 12V 24V 2-Channel Relay Module Shield For Arduino ARM PIC AVR DSP Electronic 5V 10A 2 Channel Relay M (12V)

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$43.51

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

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$43.51

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

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$13.99

DIANN 2Pcs 5V 30A 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load For PLC Automation Equipment Control Industrial

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$13.99

DIANN 2Pcs 5V 30A 2-Channel Relay Module High Low Level Trigger With Optocoupler Isolation Load For PLC Automation Equipment Control Industrial

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$13.60

GAEYAELE 2 Channel Relay Module AC/DC 24V Relay Interface

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140

$13.60

GAEYAELE 2 Channel Relay Module AC/DC 24V Relay Interface

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$131.54

10BR2-900 BEA Wireless Programmable 2 Relay Logic Module

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$131.54

10BR2-900 BEA Wireless Programmable 2 Relay Logic Module

Buy Door Hardware Now 2.1

$7.00

2 Channel 2CH DC 5V 12V 24V IR Infrared Remote Control Switch High-Current Relay Module Board LED Status Indicator 5V -24V (5V)

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$7.00

2 Channel 2CH DC 5V 12V 24V IR Infrared Remote Control Switch High-Current Relay Module Board LED Status Indicator 5V -24V (5V)

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$4.99

Yetaida 2 Channel DC 5V Relay Module With Optocoupler Control Board And Indicator Light, Development Board Accessories Relays, Suport High Low Level

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$4.99

Yetaida 2 Channel DC 5V Relay Module With Optocoupler Control Board And Indicator Light, Development Board Accessories Relays, Suport High Low Level

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$24.57

Taidda 2-Way Relay Board, DC5V-24V, 2 Relays, Absorption Diode Circuits, Active High, 2 Outputs, Ethernet Controller Module, Cloud Remote Control, &

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$24.57

Taidda 2-Way Relay Board, DC5V-24V, 2 Relays, Absorption Diode Circuits, Active High, 2 Outputs, Ethernet Controller Module, Cloud Remote Control, &

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$9.89

Sunfounder 5V 8 Channel Relay Shield Module For Arduino R3 2560 1280 ARM PIC AVR STM32 Raspberry Pi 3, 2 Model B & B+

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1K+

$9.89

Sunfounder 5V 8 Channel Relay Shield Module For Arduino R3 2560 1280 ARM PIC AVR STM32 Raspberry Pi 3, 2 Model B & B+

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$8.60

Relay Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level YYG-2(12VDC)

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$8.60

Relay Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level YYG-2(12VDC)

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$87.68

$95.15

INTELLITEC B.I.R.D.-D-2 2Amp 12V DC Bi-Directional Isolator Relay

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Free shipping

$87.68

$95.15

INTELLITEC B.I.R.D.-D-2 2Amp 12V DC Bi-Directional Isolator Relay

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$21.99

Solidremote 12V - 24V Secure Wireless RF Remote Control Relay Switch Universal 2-Channel Receiver With 2 Transmitters For Garage Door Openers, LED

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1K+

$21.99

Solidremote 12V - 24V Secure Wireless RF Remote Control Relay Switch Universal 2-Channel Receiver With 2 Transmitters For Garage Door Openers, LED

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$16.95

Seco-Larm Enforcer Relay Module, 2 7A Form C SPDT Relays (SR-1212-C7ALQ)

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$16.95

Seco-Larm Enforcer Relay Module, 2 7A Form C SPDT Relays (SR-1212-C7ALQ)

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$9.99

NOYITO 6-Channel Relay Module 5V 12V 24V High Low Level Trigger With Optocoupler Isolation Relay Load AC 250V 10A DC 30V 10A (DC 24V, Blue)

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$9.99

NOYITO 6-Channel Relay Module 5V 12V 24V High Low Level Trigger With Optocoupler Isolation Relay Load AC 250V 10A DC 30V 10A (DC 24V, Blue)

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$10.42

YWBL-WH Relay Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level YYG-2(5VDC) (1)

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$10.42

YWBL-WH Relay Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level YYG-2(5VDC) (1)

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$24.99

Electronics-Salon DIN Rail Mount 2 DPDT Signal Relay Interface Module, DC 24V Version.

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$24.99

Electronics-Salon DIN Rail Mount 2 DPDT Signal Relay Interface Module, DC 24V Version.

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$9.99

AOICRIE 8Pcs PC817 2 Channel Optocoupler Isolation Board Voltage Converter 3.6-30V Driver Photoelectric Isolated Module 817 Voltage Isolation Module

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$9.99

AOICRIE 8Pcs PC817 2 Channel Optocoupler Isolation Board Voltage Converter 3.6-30V Driver Photoelectric Isolated Module 817 Voltage Isolation Module

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