AZDelivery 4 Channel Relay Module DC 5V with Optocoupler Low Level Trigger Shield Board compatible Arduino Including E Book!

This microcontroller compatible board with 4 relays for max. 50 V AC / 5 A or 30 V DC / 5 A The 4-channel relay module is equipped with transistors, diodes and optocouplers to switch higher loads safely, reliably and with little power. The module is also equipped with generously sized relays to reliably perform many switching operations. Each channel of the module is additionally connected to an LED that indicates the switching status of the relay. Thanks to the practical holes, the module can be safely mounted in housings. ✅ This product contains an e-book that contains useful information about the beginning of your project, it helps with a quick setup and saves time in the configuration process. We offer a range of application examples, complete installation guides and libraries.