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Solid State Relay Module, 1-Channel DC 5/12V High Level Trigger Solid State Relay Module 250VAC 2A Output with Fuse (5V): Amazon.com: Industrial & Scientific
NOYITO 2 Channel Relay Module Self-Locking Triggering Interlocking Optocoupler Isolation High Low Level Trigger for PLC Industrial Control (12V): Amazon.com: Industrial & Scientific
5V 12V 24V 1 Channel DC Relay Module Solid State Low Level SSR Relay (5V): Amazon.com: Industrial & Scientific
Electronics-Salon 2 DPDT Signal Relay Module Board, DC 12V Version, for Arduino Raspberry-Pi 8051 PIC.: Amazon.com: Industrial & Scientific
Amazon.com: Solid State Relay Module, 1 Channel DC 5V/12V 2A SSR Module Board with Fuse Low Level Trigger(5V) : 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: Acxico 1Pcs 3-32V DC 1-Channel SSR Solid State Relay High-Low Trigger 5A 5V 12V for Arduino : Industrial & Scientific
Relay Module with Optocoupler 1 Channel High&Low Level Trigger Relay Module Board AC 250V/10A DC 30V/10A (5V): Amazon.com: Industrial & Scientific
NOYITO 8-Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 10A for PLC Automation Equipment Control Industrial Control (8 Channel 12V): Amazon.com: Industrial & Scientific
Amazon.com: MakerHawk Time Delay Relay, 12V 5V USB Relay Module 6-30V Delay Controller Board Delay-Off Cycle Timer Control Switch with LCD Display Support Micro USB 5V Power Supply : Tools & Home
Amazon.com: YWBL-WH Adjustable Cycle Timer Delay Module, DC 5V 12V 24V On/Off Switch Relay Module for Machine Repetitive Test : Industrial & Scientific