16 Channel Wifi Relay Module with Optocoupler 5V Useful for Arduino Raspberry Pi
9,73 €
2, The use of industry quality isolation optocoupler, anti-interference ability, stable performance; trigger current only 3mA;. 1, With optocoupler protection. i/o port drive low level effective. It provides easy and hassle-free wiring options, making your installation process a breeze.
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