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
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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: 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: JAMCHE 5V/12V 4Way Channels Relay Module Opto Isolator Isolated Optocoupler Trigger Switch Relay Module AC 250V DC30V 10A for (Color : 12V 4 Way) : 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
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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
Aexit 5V High/Low Computer Components Level Trigger Opto-Isolator 2-CH Power Relay Motherboards Module Board: 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
One channel Opto Isolator Relay output 500W input 7-12VDC Assembled Kit: Amazon.com: Industrial & Scientific
Amazon.com: 2PCS 4 Channel 12V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino STM32 Red : Industrial & Scientific
Amazon.com: 10pcs 12V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino : Electronics
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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: Electronics123.com, Inc. 4 Channel Opto-Isolator on DIN-Rail Mount : Toys & Games
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
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 5V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific](https://m.media-amazon.com/images/I/71NNkhe7-5L._AC_UF894,1000_QL80_.jpg "Amazon.com: [2-Pack] DC 5V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific")
Amazon.com: [2-Pack] DC 5V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific
ENLOZURE 12Pcs 12V One Channel Relay Module OPTO Isolation High Low Level Trigger Relay Switch for Raspberry Pi Arduino: Amazon.com: Industrial & Scientific
Relay Module Board 1 Channel with Optocoupler Isolation Support High or Low Level Trigger (3V Low): Amazon.com: Industrial & Scientific
