ALAMSCN 16 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for Smart Control Switch sold2025 0 Wall Adapter -1Pack Total

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ALAMSCN 16 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for Smart Control Switch sold2025 0 Wall Adapter -1Pack TotalALAMSCN 16 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for Smart Control Switch Features: 1. The channels are optically isolated, safe, reliable, anti interference. 2. Transistor drive to increase the relay coil control pins high impedance. 3. The control pin has a pull down circuit to prevent malfunction relay vacant. 4. Simple relay magnetic circuit to meet low cost of mass production. 5. Widely used for Domestic