Cheap And Discounts 10PCS /50PCS /100PCS /500PCS LM393DR LM393DR2G LM393DT SOP-8 Low Power Dual Channel Voltage Comparator Chip New Original Wholesale. Buy Directly From Merchant JOYHOT Co., Ltd. Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.