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HiLetgo 2pcs DC 24V 1 Channel Relay Module with OPTO Isolation Support High or Low Level Trigger
Amazon.com: HiLetgo 2pcs 24V Single Bistable Self-Locking Relay Module Push to Start and Stop … : Industrial & Scientific
Amazon.com: Kigauru Relay 10A General Purpose Relay LY2NJ with LED lamp 8 pins dpdt Relais 12v 24v 110v 220v (Size : 12VDC) : Industrial & Scientific
AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger: Amazon.com: Industrial & Scientific
Amazon.com: DIN Rail Mount AC/DC 5V 12V 24V SPST-NO 5Amp Power Relay Module (AC/DC 5V, 16 Channels) : Industrial & Scientific
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HiLetgo 2pcs DC 24V 1 Channel Relay Module with OPTO Isolation Support High or Low Level Trigger