Cheap And Discounts 3pcs New Proximity switch DW-AS-623-M8-001 DW-AS-622-M8-001 DW-AS-623-M8-123 DW-AS-621-M8-123 DW-AS-613-M30-002 Wholesale. Buy Directly From Merchant Xiaomi Mifun Smart Home Store Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.