Amazon.com: HiLetgo 5V 8 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger : Industrial & Scientific
Amazon.com: 5V Relay Module with Optocoupler Isolation Support High and Low Level Trigger Relay Red Board (8 Channel 5V Relay) : 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: 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: Weewooday 15 Pieces 5V Relay Module 1- Channel Relay Control Boards with Optocoupler Isolation High and Low Level Trigger Expansion Board : Industrial & Scientific
KEMET EE2-4.5NU Signal Relay, Miniature, 4.5 VDC, DPDT, 2 A, SMD, Non Latching, EE2 Series: Amazon.com: Industrial & Scientific
Chanzon 50pcs IRLML2502 SOT-23 Power Sic MOSFET IRLML2502TRPBF 4.2A Transistor SMD: Amazon.com: Industrial & Scientific
NOYITO 4 Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 10A for PLC Automation Equipment Control (4-Channel 12V): Amazon.com: Industrial & Scientific
2PCS DC 3V-15V 5V 12V Voice Control Delay Switch Miniature Microphone Sound Activated Time Delay Turn Off Module Voice Alarm Sensor Module for LED Relay Electronic Device: Amazon.com: Tools & Home Improvement
Amazon.com: HiLetgo 2pcs DC 24V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 24V : Industrial & Scientific