![12V Relay Module with Isolated Optocoupler High or Low Level Trigger Relay Board 2 Channel 5V Relay Module Relay Switch for Raspberry Pi Arduino Relay DIY 5PCS (12V-2Channel): Amazon.com: Industrial & Scientific 12V Relay Module with Isolated Optocoupler High or Low Level Trigger Relay Board 2 Channel 5V Relay Module Relay Switch for Raspberry Pi Arduino Relay DIY 5PCS (12V-2Channel): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/81F88t-oKjL._AC_UF1000,1000_QL80_.jpg)
12V Relay Module with Isolated Optocoupler High or Low Level Trigger Relay Board 2 Channel 5V Relay Module Relay Switch for Raspberry Pi Arduino Relay DIY 5PCS (12V-2Channel): Amazon.com: Industrial & Scientific
![Tanbupu 3PCS Relay Module 5V DC 1 Channel Relay Switch Board with OPTO-Isolated High Or Low Level Trigger Board for Arduino X-002-1-5VDC: Amazon.com: Industrial & Scientific Tanbupu 3PCS Relay Module 5V DC 1 Channel Relay Switch Board with OPTO-Isolated High Or Low Level Trigger Board for Arduino X-002-1-5VDC: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71I8jHzEODL._AC_UF1000,1000_QL80_.jpg)
Tanbupu 3PCS Relay Module 5V DC 1 Channel Relay Switch Board with OPTO-Isolated High Or Low Level Trigger Board for Arduino X-002-1-5VDC: Amazon.com: Industrial & Scientific
![Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific](https://m.media-amazon.com/images/I/519bMKdd-0L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific
![Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific](https://m.media-amazon.com/images/I/71aGbUlrehL.jpg)
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
![Amazon.com: SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC : Everything Else Amazon.com: SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC : Everything Else](https://m.media-amazon.com/images/I/51f8-zN2ZxL._AC_UF894,1000_QL80_.jpg)
Amazon.com: SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC : Everything Else
![Amazon.com: 5V 1 2 4 8 Channel Relay Module with optocoupler. Relay Output 1 2 4 8 Way Relay Module for arduino in Stock (1 Channel Relay) : Industrial & Scientific Amazon.com: 5V 1 2 4 8 Channel Relay Module with optocoupler. Relay Output 1 2 4 8 Way Relay Module for arduino in Stock (1 Channel Relay) : Industrial & Scientific](https://m.media-amazon.com/images/I/71vDnyCHz8L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 5V 1 2 4 8 Channel Relay Module with optocoupler. Relay Output 1 2 4 8 Way Relay Module for arduino in Stock (1 Channel Relay) : Industrial & Scientific
![30A 5V 1 Channel Relay Module with Optocoupler Isolation High/Low Level Trigger Relay for Arduino: Amazon.com: Industrial & Scientific 30A 5V 1 Channel Relay Module with Optocoupler Isolation High/Low Level Trigger Relay for Arduino: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/41VFleHaaOL._AC_UF1000,1000_QL80_.jpg)
30A 5V 1 Channel Relay Module with Optocoupler Isolation High/Low Level Trigger Relay for Arduino: Amazon.com: Industrial & Scientific
![3 Pack KY-019 5V One Channel Relay Module Board Shield For PIC AVR DSP ARM for Arduino Relay: Amazon.com: Industrial & Scientific 3 Pack KY-019 5V One Channel Relay Module Board Shield For PIC AVR DSP ARM for Arduino Relay: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71pec2w9uNL._AC_UF1000,1000_QL80_.jpg)
3 Pack KY-019 5V One Channel Relay Module Board Shield For PIC AVR DSP ARM for Arduino Relay: Amazon.com: Industrial & Scientific
![Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics](https://m.media-amazon.com/images/I/71oYyAoyO3L._AC_UF894,1000_QL80_.jpg)
Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
![Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics](https://m.media-amazon.com/images/I/71dSbBDm0PL.jpg)
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
![Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics](https://m.media-amazon.com/images/I/71bXWugi74L.jpg)
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
![Relay Shield for Arduino Uno, 4 relays (Assembled)|relay valve|relay moduleshield supplies - AliExpress Relay Shield for Arduino Uno, 4 relays (Assembled)|relay valve|relay moduleshield supplies - AliExpress](https://ae01.alicdn.com/kf/Hb1098a083aac41d3b452f462d8d69fce1/Relay-Shield-for-Arduino-Uno-4-relays-Assembled.jpg_Q90.jpg_.webp)
Relay Shield for Arduino Uno, 4 relays (Assembled)|relay valve|relay moduleshield supplies - AliExpress
![1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific 1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61B1SuknxAL._AC_UF1000,1000_QL80_.jpg)
1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific
![SunFounder 5V 8 Channel Relay Shield Module for Arduino R3 2560 1280 ARM PIC AVR STM32 Raspberry Pi 3, 2 Model B & B+ SunFounder 5V 8 Channel Relay Shield Module for Arduino R3 2560 1280 ARM PIC AVR STM32 Raspberry Pi 3, 2 Model B & B+](https://m.media-amazon.com/images/I/81tWVodYMGL._AC_UF894,1000_QL80_.jpg)
SunFounder 5V 8 Channel Relay Shield Module for Arduino R3 2560 1280 ARM PIC AVR STM32 Raspberry Pi 3, 2 Model B & B+
![Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Automotive Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Automotive](https://m.media-amazon.com/images/I/61FfjAPCMlL.jpg)
Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Automotive
![Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific](https://m.media-amazon.com/images/I/71iHfA+0UhL._AC_UF894,1000_QL80_.jpg)
Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific
![Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics](https://m.media-amazon.com/images/I/71dSbBDm0PL._AC_UF894,1000_QL80_.jpg)
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
![Amazon.com: SainSmart 5V 2-Channel Solid State Relay Board for Arduino Uno Duemilanove Mega2560 Mega1280 Arm Dsp Pic : Everything Else Amazon.com: SainSmart 5V 2-Channel Solid State Relay Board for Arduino Uno Duemilanove Mega2560 Mega1280 Arm Dsp Pic : Everything Else](https://m.media-amazon.com/images/I/61wNe4nuBTL._AC_UF894,1000_QL80_.jpg)
Amazon.com: SainSmart 5V 2-Channel Solid State Relay Board for Arduino Uno Duemilanove Mega2560 Mega1280 Arm Dsp Pic : Everything Else
![5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino: Amazon.com: Industrial & Scientific 5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71aojw7GmKL.jpg)