وحدة تتابع اردوينو قناة ذات مستوى منخفض لجهاز الحاسوب SCM

Product Description Product introduction: 1, this module is in line with international safety standard, control areas and load area have the isolation groove; 2, USES the loose quality goods relay; 3, have power and relay operation instructions, and bright, disconnect the dawn; 4, signal input