4-Channel Relay Module

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4-Channel Relay Module Features a Standard interface Can be controlled directly by any microcontroller Offers Opto-isolated inputs Includes indicator LEDs for relay output status T his is a 4-Channel Relay Module. This 4-channel relay interface board can control various appliances and other equipment with high current. It can be controlled directly by any micro-controller. It offers Opto-isolated inputs and includes indicator LEDs for relay output status. Show more