5v 2 channel relay module shield with optocoupler for arduino arm pic plc avr dsp mcu scm singlechip electronic

5v 2 channel relay module shield with optocoupler for arduino arm pic plc avr dsp mcu scm singlechip electronic
sku: 387343621
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$3.52
Shipping from: China
   Description
specifications: size: 3.8 x 4.9 x 2.1 cm net weight: 29 g package weight: 39 g color: as shown in the pictures
   Technical Details
_GoogleCategoryID: 2082
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