Color: Red + Blue - Quantity: 1 - Material: PCB board - 8-way relay module with optical isolation high pull. - Module built-in LED indicates relay status - Input voltage: 24V - High level trigger trigger voltage 24V trigger current need more than 5mA - VCC: Positive pole input - GND: Negative pole input - IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 Control ports high level relay pull-in low level relay release - COM: Control circuit grounding shortly connected with GND - Great for DIY project - Packing list: - 1 x Module

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