![AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger: Amazon.com: Industrial & Scientific AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71ib7ipOilL._AC_UF1000,1000_QL80_.jpg)
AEDIKO 2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger: Amazon.com: Industrial & Scientific
![Amazon.com: AIMPGSTL 2Pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Relay Module : Industrial & Scientific Amazon.com: AIMPGSTL 2Pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Relay Module : Industrial & Scientific](https://m.media-amazon.com/images/I/71vZ-oD0n6L._AC_UF894,1000_QL80_.jpg)
Amazon.com: AIMPGSTL 2Pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level Relay Module : Industrial & Scientific
![Amazon.com: 10pcs 12V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino : Electronics Amazon.com: 10pcs 12V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino : Electronics](https://m.media-amazon.com/images/I/81+rpNYlLKL.jpg)
Amazon.com: 10pcs 12V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino : Electronics
![Aexit 5V High/Low Computer Components Level Trigger Opto-Isolator 2-CH Power Relay Motherboards Module Board: Amazon.com: Industrial & Scientific Aexit 5V High/Low Computer Components Level Trigger Opto-Isolator 2-CH Power Relay Motherboards Module Board: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61ET5mmUQwL._AC_UF894,1000_QL80_.jpg)
Aexit 5V High/Low Computer Components Level Trigger Opto-Isolator 2-CH Power Relay Motherboards Module Board: Amazon.com: Industrial & Scientific
![Optical Isolation Module Relay Module 8 Channel Optocoupler Isolation Board Voltage Translator PNP NPN Converter Module: Amazon.com: Industrial & Scientific Optical Isolation Module Relay Module 8 Channel Optocoupler Isolation Board Voltage Translator PNP NPN Converter Module: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71js1aldwFL._AC_UF1000,1000_QL80_.jpg)
Optical Isolation Module Relay Module 8 Channel Optocoupler Isolation Board Voltage Translator PNP NPN Converter Module: Amazon.com: Industrial & Scientific
![Amazon.com: [2-Pack] DC 12V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific Amazon.com: [2-Pack] DC 12V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific](https://m.media-amazon.com/images/I/717incMmQNL._AC_UF350,350_QL80_.jpg)
Amazon.com: [2-Pack] DC 12V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific
![Amazon.com: Relay Module, DC 6‑30V Programmable Delay Off Cycle Timer Disconnect Trigger Opto Isolator Switch Cycle Delay Timer Switch Relay Board for Circuit : Industrial & Scientific Amazon.com: Relay Module, DC 6‑30V Programmable Delay Off Cycle Timer Disconnect Trigger Opto Isolator Switch Cycle Delay Timer Switch Relay Board for Circuit : Industrial & Scientific](https://m.media-amazon.com/images/I/71D+CWdHdHL.jpg)
Amazon.com: Relay Module, DC 6‑30V Programmable Delay Off Cycle Timer Disconnect Trigger Opto Isolator Switch Cycle Delay Timer Switch Relay Board for Circuit : Industrial & Scientific
![Amazon.com: DZS Elec 5V 2 Channel Relay Optocoupler Isolation Module Red Board 3-5V High and 0-1.5V Low Level Triggered Load AC 0-250V / DC 0-30V 10A SCM IO Control : Industrial & Scientific Amazon.com: DZS Elec 5V 2 Channel Relay Optocoupler Isolation Module Red Board 3-5V High and 0-1.5V Low Level Triggered Load AC 0-250V / DC 0-30V 10A SCM IO Control : Industrial & Scientific](https://m.media-amazon.com/images/I/71j4ZQN7rHL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DZS Elec 5V 2 Channel Relay Optocoupler Isolation Module Red Board 3-5V High and 0-1.5V Low Level Triggered Load AC 0-250V / DC 0-30V 10A SCM IO Control : Industrial & Scientific
![Amazon.com: Relay Module, DC 6‑30V Programmable Delay Off Cycle Timer Disconnect Trigger Opto Isolator Switch Cycle Delay Timer Switch Relay Board for Circuit : Industrial & Scientific Amazon.com: Relay Module, DC 6‑30V Programmable Delay Off Cycle Timer Disconnect Trigger Opto Isolator Switch Cycle Delay Timer Switch Relay Board for Circuit : Industrial & Scientific](https://m.media-amazon.com/images/I/71D+CWdHdHL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Relay Module, DC 6‑30V Programmable Delay Off Cycle Timer Disconnect Trigger Opto Isolator Switch Cycle Delay Timer Switch Relay Board for Circuit : Industrial & Scientific
![Amazon.com: 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) : Industrial & Amazon.com: 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) : Industrial &](https://m.media-amazon.com/images/I/81F88t-oKjL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 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) : Industrial &
![Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Isolation Control and Voltage Conversion: Amazon.com: Industrial & Scientific Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Isolation Control and Voltage Conversion: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/614wQ+vzF5L._AC_UF1000,1000_QL80_.jpg)
Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Isolation Control and Voltage Conversion: Amazon.com: Industrial & Scientific
![Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Isolation Control and Voltage Conversion: Amazon.com: Industrial & Scientific Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Isolation Control and Voltage Conversion: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71RIAdiJi5L._AC_UF1000,1000_QL80_.jpg)
Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module PCB Opto Isolator Module 817 3.6‑30V for Isolation Control and Voltage Conversion: Amazon.com: Industrial & Scientific
![Amazon.com: IIVVERR MCU Opto-isolator 8-Channel Power Relay Module Expansion Board DC 30V (Tarjeta de expansión de módulo de relé de alimentación de 8 canales MCU optoaislador DC 30V : Everything Else Amazon.com: IIVVERR MCU Opto-isolator 8-Channel Power Relay Module Expansion Board DC 30V (Tarjeta de expansión de módulo de relé de alimentación de 8 canales MCU optoaislador DC 30V : Everything Else](https://m.media-amazon.com/images/I/61Gyco+oFPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: IIVVERR MCU Opto-isolator 8-Channel Power Relay Module Expansion Board DC 30V (Tarjeta de expansión de módulo de relé de alimentación de 8 canales MCU optoaislador DC 30V : Everything Else
![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 5): Amazon.com: Industrial & Scientific 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 5): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/81OZbOk07HL._AC_UF350,350_QL80_.jpg)
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 5): Amazon.com: Industrial & Scientific
![NOYITO 1 Channel Relay Module with Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack of 3) (5V, Red): Amazon.com: Industrial & Scientific NOYITO 1 Channel Relay Module with Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack of 3) (5V, Red): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/81-j7-RH1yL._AC_UF1000,1000_QL80_.jpg)
NOYITO 1 Channel Relay Module with Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack of 3) (5V, Red): Amazon.com: Industrial & Scientific
![One channel Opto Isolator Relay output 500W input 7-12VDC Assembled Kit: Amazon.com: Industrial & Scientific One channel Opto Isolator Relay output 500W input 7-12VDC Assembled Kit: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61H-ZQAEkxL.jpg)
One channel Opto Isolator Relay output 500W input 7-12VDC Assembled Kit: Amazon.com: Industrial & Scientific
![Amazon.com: 3 PCS 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino STM32, 1 Channel : Industrial & Scientific Amazon.com: 3 PCS 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino STM32, 1 Channel : Industrial & Scientific](https://m.media-amazon.com/images/I/61iq0moHu3L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 3 PCS 5V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino STM32, 1 Channel : Industrial & Scientific
![Taidacent 8 Channel Relay Board Raspberry Pi 4B / 3B + 5V Relay Module Expansion Board Opto Isolator Relay Circuit for Smart Home Support PLC: Amazon.com: Industrial & Scientific Taidacent 8 Channel Relay Board Raspberry Pi 4B / 3B + 5V Relay Module Expansion Board Opto Isolator Relay Circuit for Smart Home Support PLC: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/616CJJGuB4L._AC_UF1000,1000_QL80_.jpg)
Taidacent 8 Channel Relay Board Raspberry Pi 4B / 3B + 5V Relay Module Expansion Board Opto Isolator Relay Circuit for Smart Home Support PLC: Amazon.com: Industrial & Scientific
![SSR 40Aa 40A Solid State, 240V Relay Solid State Relay Relay Module Ac Ac Input 90 250V Ac Output 24 480V Ac: Amazon.com: Industrial & Scientific SSR 40Aa 40A Solid State, 240V Relay Solid State Relay Relay Module Ac Ac Input 90 250V Ac Output 24 480V Ac: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61kvffGQwfL._AC_UF1000,1000_QL80_.jpg)