Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
Amazon.com: UCTRONICS DC 12V Time Delay Relay Module for Smart Home, Tachograph, GPS, PLC Control, Industrial Control, Electronic Experiment, Arduino Robot : Automotive
Delay Relay Board, DC 12V Delay Turn Off Switch Module with Timer,Relay Delay for Smart Home Tachograph GPS Industrial Control Electronic Experiment Arduino Robot,Trigger: Amazon.com: Tools & Home Improvement
AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger: Amazon.com: Industrial & Scientific
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
ACEIRMC 10pcs 12v Relay Board for Raspberry Arduino Relay Module 1 Channel Opto-Isolated High or Low Level Trigger (12V)
Amazon.com: SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC : Everything Else
ACEIRMC 10pcs 12v Relay Board for Raspberry Arduino Relay Module 1 Channel Opto-Isolated High or Low Level Trigger (12V)
Amazon.com: HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific
Delay Relay Board, DC 12V Delay Turn Off Switch Module with Timer,Relay Delay for Smart Home Tachograph GPS Industrial Control Electronic Experiment Arduino Robot,Trigger: Amazon.com: Tools & Home Improvement
NOYITO 6-Channel Relay Module 5V 12V 24V High Low Level Trigger with Optocoupler Isolation Relay Load AC 250V 10A DC 30V 10A (DC 24V, Blue): Amazon.com: Industrial & Scientific
SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM
ACEIRMC 10pcs 12v Relay Board for Raspberry Arduino Relay Module 1 Channel Opto-Isolated High or Low Level Trigger (12V)
HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger
ACEIRMC 10pcs 12v Relay Board for Raspberry Arduino Relay Module 1 Channel Opto-Isolated High or Low Level Trigger (12V)
Amazon.com: AITRIP 2Pcs 6 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control Board Compatible with Arduino UNO R3 Raspberry Pi DSP AVR PIC ARM : Industrial & Scientific
5V/12V/24V Relay Module,1 Channel Optocoupler Relay Module Board High & Low Trigger (5V): Amazon.com: Industrial & Scientific
ANMBEST Relay Module with Optocoupler High/Low Level Trigger for Arduino (3, 3V Relay 1 Channel): Amazon.com: Industrial & Scientific
5V/12V/24V Relay Module,1 Channel Optocoupler Relay Module Board High & Low Trigger (5V): Amazon.com: Industrial & Scientific
DC 12V 4-Channel Relay Module Low Level Triggering Bidirectional Optocoupler Isolation Load 10A DC 30V AC 250V for PLC Automation Control, Industrial System Control, Arduino(DC 12V, 4-Channel)
HiLetgo 2pcs 12V Single Bistable Self-Locking Relay Module Push to Start and Stop: Amazon.com: Industrial & Scientific
Tanbupu 3PCS Relay Module 12V DC 1 Channel Relay Optocoupler Isolation Switch Board with OPTO-Isolated Support High Or Low Level Trigger Board for Arduino X-002-1-12VDC: Amazon.com: Industrial & Scientific
HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V
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
