选来选去，还是唯尚牌GPS同步时间服务器 W9002 山东唯尚电子有限公司

p1Src=//y3.yzimgs.com/uploads/348107/2019124-15037882.jpg?watermark/2/text/5rWO5Y2X5ZSv5bCa55S15a2Q5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/750/fill/I0E3QTlBOA==/gravity/SouthEast