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Amazon.com: SainSmart 8-Channel Relay Module : Everything Else
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Amazon.com: SainSmart 8-Channel Relay Module : Everything Else
Amazon.com: SainSmart 2-Channel Relay Module : Automotive
Yuecoom 12V Relay Module Latching Switch Board, DC 6-24V Switch Latching Relay Module, Micro 6-24V Relais Flip-Flop Latch Relay Module Bistable Self Locking Switch Relay Board: Amazon.com: Industrial & Scientific
Amazon.com: 30A 4 Channel Relay Module Expansion Board with Optocoupler for Arduino Raspberry Pi DSP AVR PIC ARM (5VDC) : Electronics
AEDIKO 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level: Amazon.com: Industrial & Scientific
Tolako 5v 16 Channel Relay Module Board for Arduino with Optocoupler Protection Works with Official Arduino Board: Amazon.com: Tools & Home Improvement
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Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Electronics
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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
