接近开关

华鑫电子工控（淘宝）
https://item.taobao.com/item.htm?abbucket=14&detail_redpacket_pop=true&id=782070010005<k2=1749696152027mvm7m805zsj5cygx5rteu&ns=1&priceTId=213e047817496961359871696e1140&query=GX-8MU&skuId=5512841123110&spm=a21n57.1.hoverItem.2&utparam=%7B%22aplus_abtest%22%3A%2205235b46379157200a492b685adc8d1e%22%7D&xxc=taobaoSearch

1号铺传感器（淘宝）
https://item.taobao.com/item.htm?id=731250560626&skuId=5239933327323

远洋商贸123（淘宝）
https://item.taobao.com/item.htm?abbucket=14&detail_redpacket_pop=true&id=885395012993<k2=1749696764697h0csxo011lspqow7hyq57a&ns=1&priceTId=213e047817496961359871696e1140&query=GX-8MU&skuId=5893513607937&spm=a21n57.1.hoverItem.5&utparam=%7B%22aplus_abtest%22%3A%221deb714b8fd0979ae1b4c37d15cb230f%22%7D&xxc=taobaoSearch