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See our listings for the best prices on 1 Channel Relay Module. If saving money is your goal, there is one online merchant that can save you more money on 1 Channel Relay Module than anyone else and that is Ebay.com. They have thousands of business and industrial related products for sale at the cheapest prices and widest inventory. Why buy new when you can also save a ton of money buying used. View the listings below and click on an item that interests you for more details.

1 2 4 8 Channel 5v Relay Module Board For Arduino Raspberry Pi Arm Avr Dsp Pic

1 2 4 - $3.25

1 2 4 8 Channel 5v Relay Module Board For Arduino Raspberry Pi Arm Avr Dsp Pic
5pcs 5v Single 1 Channel Relay Module Board Shield For Arduino Raspberry Pi Usa

5pcs 5v Single - $8.99

5pcs 5v Single 1 Channel Relay Module Board Shield For Arduino Raspberry Pi Usa
1 2 4 8 Channel 5v Relay Module Board For Arduino Raspberry Pi Arm Avr Dsp Pic

1 2 4 - $3.49

1 2 4 8 Channel 5v Relay Module Board For Arduino Raspberry Pi Arm Avr Dsp Pic
5v 12v 1 2 4 6 8 Channel Relay Module With Optocoupler Relay Output For Arduino

5v 12v 1 - $5.94

5v 12v 1 2 4 6 8 Channel Relay Module With Optocoupler Relay Output For Arduino
1 Channel Dc 5v Relay Switch Board Module For Arduino Raspberry Pi Pic Arm

1 Channel Dc - $3.95

1 Channel Dc 5v Relay Switch Board Module For Arduino Raspberry Pi Pic Arm
One 1 Channel Relay Module Shield 5v Control 250v 10a W Optocoupler For Arduino

One 1 Channel - $3.95

One 1 Channel Relay Module Shield 5v Control 250v 10a W Optocoupler For Arduino
4pcs 5v Single 1 Channel Relay Module Board Shield For Arduino Raspberry Pi

4pcs 5v Single - $7.99

4pcs 5v Single 1 Channel Relay Module Board Shield For Arduino Raspberry Pi
5v 12v 1 2 Channel Relay Module With Optocoupler Relay Output For Arduino

5v 12v 1 - $2.25

5v 12v 1 2 Channel Relay Module With Optocoupler Relay Output For Arduino
1 16 Channel 5v 12v Relay Module Board For Arduino Raspberry Pi Arm Avr Dsp Pic

1 16 Channel - $9.37

1 16 Channel 5v 12v Relay Module Board For Arduino Raspberry Pi Arm Avr Dsp Pic
Hiletgo 12v 1 Channel Relay Module With Optocoupler Isolation Support High Or

Hiletgo 12v 1 - $8.82

Hiletgo 12v 1 Channel Relay Module With Optocoupler Isolation Support High Or
12v 1 Channel Relay Module With Opto Isolation High Low Level Trigger Ca

12v 1 Channel - $1.28

12v 1 Channel Relay Module With Opto Isolation High Low Level Trigger Ca
5v 1 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm Avr bp

5v 1 Channel - $2.16

5v 1 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm Avr bp
1 2 4 Channel Usb Smart Switch Wifi Relay Module 433mhz Home Remote Control

1 2 4 - $0.99

1 2 4 Channel Usb Smart Switch Wifi Relay Module 433mhz Home Remote Control
1 Channel 5v Relay Module Shield For Arduino Meage2560 1280 Uno Arm Pic Avr

1 Channel 5v - $1.73

1 Channel 5v Relay Module Shield For Arduino Meage2560 1280 Uno Arm Pic Avr
12v 1 Channel Relay Module With Opto Isolation High Low Level Trigger Ca

12v 1 Channel - $1.99

12v 1 Channel Relay Module With Opto Isolation High Low Level Trigger Ca
One 1 Channel Relay Module Shield 5v Control 250v 10a W Optocoupler For Arduino

One 1 Channel - $1.92

One 1 Channel Relay Module Shield 5v Control 250v 10a W Optocoupler For Arduino
4 channel 12v Relay Module Board With Optocoupler H l Level Triger For Arduino

4 channel 12v - $9.90

4 channel 12v Relay Module Board With Optocoupler H l Level Triger For Arduino
5v 1 2 4 6 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm Avr

5v 1 2 - $1.49

5v 1 2 4 6 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm Avr
4 Channel Relay Module 1 Spdt Din Rail Mount 12v 24v Dcac Interface Relay Module

4 Channel Relay - $20.85

4 Channel Relay Module 1 Spdt Din Rail Mount 12v 24v Dcac Interface Relay Module
5pcs 1 channel 5v Relay Module Shield For Arduino 1280 2560 Arm Pic Avr Dsp

5pcs 1 channel - $10.28

5pcs 1 channel 5v Relay Module Shield For Arduino 1280 2560 Arm Pic Avr Dsp
Hiletgo 2pcs Dc 24v 1 Channel Relay Module With Opto Isolation Support High O

Hiletgo 2pcs Dc - $10.75

Hiletgo 2pcs Dc 24v 1 Channel Relay Module With Opto Isolation Support High O
8 Channel Interface Relay Module 12v 24v Din Rail Panel Mount For Automation Plc

8 Channel Interface - $31.25

8 Channel Interface Relay Module 12v 24v Din Rail Panel Mount For Automation Plc
1 2 4channel Bluetooth Relay Module App Control Switch Iot Smart Home 5v 12v Dc

1 2 4channel - $5.75

1 2 4channel Bluetooth Relay Module App Control Switch Iot Smart Home 5v 12v Dc
12v 1 2 4 8 16 Channel Relay Module With Optocoupler For Avr Dsp Arm Arduino Pic

12v 1 2 - $0.99

12v 1 2 4 8 16 Channel Relay Module With Optocoupler For Avr Dsp Arm Arduino Pic
5v 1 2 4 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm_shech2

5v 1 2 - $2.33

5v 1 2 4 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm_shech2
5v 9v 12v 24v 1 2 4 Channel Optocoupler Relay Module For High Low Level Trigger

5v 9v 12v - $2.88

5v 9v 12v 24v 1 2 4 Channel Optocoupler Relay Module For High Low Level Trigger
12v 1 Channel Module With Optocoupler Isolation High And Low Level Trigger Relay

12v 1 Channel - $1.19

12v 1 Channel Module With Optocoupler Isolation High And Low Level Trigger Relay
1pcs 1 Channel Infrared Switch Relay Driving Module Board 12v Remote Controller

1pcs 1 Channel - $2.97

1pcs 1 Channel Infrared Switch Relay Driving Module Board 12v Remote Controller
Relay Module 12v 2 Channel Dual Module From A Single Arduino Raspberry Pi Mcu

Relay Module 12v - $3.49

Relay Module 12v 2 Channel Dual Module From A Single Arduino Raspberry Pi Mcu
5pcs 1 Channel Dc 5v Relay Switch Module For Arduino Raspberry Pi Arm Avr

5pcs 1 Channel - $10.48

5pcs 1 Channel Dc 5v Relay Switch Module For Arduino Raspberry Pi Arm Avr
1ch Channel 5v 12v 24v Relay Module With Ir Infrared Remote Control 10a

1ch Channel 5v - $8.02

1ch Channel 5v 12v 24v Relay Module With Ir Infrared Remote Control 10a
5v 1 2 4 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm_she bp

5v 1 2 - $2.24

5v 1 2 4 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm_she bp
1 2 4 8 Channel Relay Module With Optocoupler Relay Output Control Way Arduino

1 2 4 - $2.49

1 2 4 8 Channel Relay Module With Optocoupler Relay Output Control Way Arduino
2pcs One 1 Channel Isolated 5v Relay Module With Optocoupler For Arduino

2pcs One 1 - $3.14

2pcs One 1 Channel Isolated 5v Relay Module With Optocoupler For Arduino
5v 1 Channel Relay Board Module With Optocoupler Led For Arduino P y7

5v 1 Channel - $2.48

5v 1 Channel Relay Board Module With Optocoupler Led For Arduino P y7
1 2 4 Channel 5v Omron Ssr G3mb 202p Solid State Relay Module For Arduino

1 2 4 - $0.99

1 2 4 Channel 5v Omron Ssr G3mb 202p Solid State Relay Module For Arduino
10pcs 1 Channel Relay Module 5v Low Level Trigger For Arduino Microcontroller

10pcs 1 Channel - $14.59

10pcs 1 Channel Relay Module 5v Low Level Trigger For Arduino Microcontroller
2pcs 12v One 1 Channel Relay Module With Optocoupler For Pic Avr Arm Arduino

2pcs 12v One - $2.05

2pcs 12v One 1 Channel Relay Module With Optocoupler For Pic Avr Arm Arduino
5v 1 Channel Omron Ssr Low Level Solid State Relay Module 250v 2a Ass

5v 1 Channel - $0.99

5v 1 Channel Omron Ssr Low Level Solid State Relay Module 250v 2a Ass
2 X 1 Channel 5v Relay Shield Module Board For Arduino Raspberry Pi Arm Avr Cn

2 X 1 - $5.99

2 X 1 Channel 5v Relay Shield Module Board For Arduino Raspberry Pi Arm Avr Cn
5 12v 1 2 4 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm Avr

5 12v 1 - $7.79

5 12v 1 2 4 8 Channel Relay Board Module Optocoupler Led For Arduino Pic Arm Avr
1 2 Channel Wifi Wireless Relay Module Switch Dc7 32v Ewelink Remote Control

1 2 Channel - $10.49

1 2 Channel Wifi Wireless Relay Module Switch Dc7 32v Ewelink Remote Control
1 Channel 5v Relay Module Shield For Arduino Uno 1280 2560 Arm Pic Avr Dsp

1 Channel 5v - $7.91

1 Channel 5v Relay Module Shield For Arduino Uno 1280 2560 Arm Pic Avr Dsp
Solid State Relay Module 1 channel Dc 5 12v High Level Trigger Solid State 2a

Solid State Relay - $14.81

Solid State Relay Module 1 channel Dc 5 12v High Level Trigger Solid State 2a
1 2 4 6 8 Channel 5v Relay Board Module Optocoupler Led For Arduino Pic Arm Avr

1 2 4 - $0.99

1 2 4 6 8 Channel 5v Relay Board Module Optocoupler Led For Arduino Pic Arm Avr
1pcs 1 Channel Relay Module Delay Cycle Timing Circuit Switch Xy j02

1pcs 1 Channel - $4.25

1pcs 1 Channel Relay Module Delay Cycle Timing Circuit Switch Xy j02
1 Channel Power Relay Module 250v 10a 5v Control W Optocoupler For Arduino

1 Channel Power - $4.69

1 Channel Power Relay Module 250v 10a 5v Control W Optocoupler For Arduino
Dc 12v 1 Channel Latching Relay Module With Touch Bistable Switch Mcu Control

Dc 12v 1 - $4.70

Dc 12v 1 Channel Latching Relay Module With Touch Bistable Switch Mcu Control
Dc 5v 1 2 4 Channel Bluetooth Relay Module App Control Switch Iot Smart Home New

Dc 5v 1 - $5.46

Dc 5v 1 2 4 Channel Bluetooth Relay Module App Control Switch Iot Smart Home New
5v One 1 Channel Relay Module Forpic Avr Dsp Arm Arduino

5v One 1 - $0.99

5v One 1 Channel Relay Module Forpic Avr Dsp Arm Arduino
5v One 1 Channel Relay Module Board Shield For Pic Avr Dsp Arm Mcu Arduino

5v One 1 - $0.99

5v One 1 Channel Relay Module Board Shield For Pic Avr Dsp Arm Mcu Arduino
1 channel Relay Module 5v High Level Trigger Expansion Board For Relays

1 channel Relay - $3.61

1 channel Relay Module 5v High Level Trigger Expansion Board For Relays
12v 1 Channel Latching Relay Module With Touch Bistable Switch Mcu Control

12v 1 Channel - $3.98

12v 1 Channel Latching Relay Module With Touch Bistable Switch Mcu Control
5v 1 Ch One Channel Relay Module Board Shield For Pic Avr Dsp Arm Mcu Arduino

5v 1 Ch - $2.50

5v 1 Ch One Channel Relay Module Board Shield For Pic Avr Dsp Arm Mcu Arduino
10pcs One 1 Channel Isolated Relay Module 5v With Optocoupler For Arduino

10pcs One 1 - $10.99

10pcs One 1 Channel Isolated Relay Module 5v With Optocoupler For Arduino
5v One 1 Channel Relay Module Board Shield For Pic Avr Dsp Arm Mcu Arduino

5v One 1 - $2.49

5v One 1 Channel Relay Module Board Shield For Pic Avr Dsp Arm Mcu Arduino
1pcs 5v 8 Channel Omron Ssr G3mb 202p Solid State Relay Module For Arduino

1pcs 5v 8 - $8.99

1pcs 5v 8 Channel Omron Ssr G3mb 202p Solid State Relay Module For Arduino
Hiletgo 12v 1 Channel Relay Module With Optocoupler Isolation Support High Or

Hiletgo 12v 1 - $7.84

Hiletgo 12v 1 Channel Relay Module With Optocoupler Isolation Support High Or
1 2 5 10pcs One 1 Channel Isolated 5v Relay Module With Optocoupler For Arduino

1 2 5 - $1.04

1 2 5 10pcs One 1 Channel Isolated 5v Relay Module With Optocoupler For Arduino
1 2 4 6 8 Channel 5v Relay Board Module Optocoupler Led For Arduino Pic Arm Avr

1 2 4 - $0.99

1 2 4 6 8 Channel 5v Relay Board Module Optocoupler Led For Arduino Pic Arm Avr
1 Channel Relay Module Sms Gsm Remote Control Switch Sim800c Stm32f103cbt6 Iot

1 Channel Relay - $24.39

1 Channel Relay Module Sms Gsm Remote Control Switch Sim800c Stm32f103cbt6 Iot
Geya 1 Channel Relay Module Ac dc 24v 12v Ac230v Gsm Control Plc Relay Module

Geya 1 Channel - $10.41

Geya 1 Channel Relay Module Ac dc 24v 12v Ac230v Gsm Control Plc Relay Module
1 2 4 Channel Relay Module Board With Optocoupler H l Level Triger 30a 5v 24v

1 2 4 - $0.99

1 2 4 Channel Relay Module Board With Optocoupler H l Level Triger 30a 5v 24v
1 Channel 5v Relay Module Time Delay Relay Module Trigger Switch Timing Cycle

1 Channel 5v - $5.35

1 Channel 5v Relay Module Time Delay Relay Module Trigger Switch Timing Cycle
2 X 1 Channel 5v Omron Low Level Trigger Solid State Relay Module For Arduino

2 X 1 - $14.79

2 X 1 Channel 5v Omron Low Level Trigger Solid State Relay Module For Arduino
10pcs 5v Single 1 Channel Relay Module Board Shield For Arduino Raspberry Pi Usa

10pcs 5v Single - $15.79

10pcs 5v Single 1 Channel Relay Module Board Shield For Arduino Raspberry Pi Usa
5v 1 Channel Omron Ssr G3mb 202p Solid State Relay With Resistive Fuse Module

5v 1 Channel - $2.94

5v 1 Channel Omron Ssr G3mb 202p Solid State Relay With Resistive Fuse Module
5v 10a One 1 Channel Relay Module With Optocoupler For Pic Avr Dsp Arm Arduino

5v 10a One - $1.45

5v 10a One 1 Channel Relay Module With Optocoupler For Pic Avr Dsp Arm Arduino
Keyestudio Dc 5v 1 2 4 8 Channel Solid State Relay Module For Arduino Project

Keyestudio Dc 5v - $4.99

Keyestudio Dc 5v 1 2 4 8 Channel Solid State Relay Module For Arduino Project
Dc 12v 1 2 4channel Bluetooth Relay Module App Control Switch Iot Smart Home New

Dc 12v 1 - $5.46

Dc 12v 1 2 4channel Bluetooth Relay Module App Control Switch Iot Smart Home New
5v 1 Channel Relay Board Module With Optocoupler Led For Arduino P pi

5v 1 Channel - $2.49

5v 1 Channel Relay Board Module With Optocoupler Led For Arduino P pi
1pcs 5v 1 2 4 8 Channel Omron Ssr G3mb 202p Solid State Relay Module For Arduino

1pcs 5v 1 - $4.75

1pcs 5v 1 2 4 8 Channel Omron Ssr G3mb 202p Solid State Relay Module For Arduino
Hiletgo 12v 1 Channel Relay Module With Optocoupler Isolation Support High Or

Hiletgo 12v 1 - $8.08

Hiletgo 12v 1 Channel Relay Module With Optocoupler Isolation Support High Or
1 2 4channel Bluetooth Relay Module App Control Switch Iot Smart Home Dc 5v 12v

1 2 4channel - $5.46

1 2 4channel Bluetooth Relay Module App Control Switch Iot Smart Home Dc 5v 12v

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