AZDelivery 4 Channel Relay Module DC 5V with Optocoupler Low Level Trigger Shield Board compatible Arduino Including E Book! (Pack of 3)

✅ AZ-Delivery 4 Relay 5V Module with Optocoupler Low Level Trigger is perfect for all different DIY projects and is 100% compatible.. ✅ This 5V 4-channel relay module with optocouplers is perfect for driving up to 4 devices with larger current. ✅ The 4 channel relay module is equipped with high current relay and standard screw terminals, which can be controlled directly by the microcontroller. ✅ Dimensions of the AZ-Delivery 5V 4 Relay Module with Optocoupler Low Level Trigger are approximately (L x W x H): 76 mm x 56 mm x 19 mm. ✅ This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries.