TH1912 TH1912A双通道数字毫伏表（价格参数） TH1912 TH1912A 说明书参数价格图片

p1Src=//y1.yzimgs.com/uploads_old/195777/2010081214205353_Old.jpg&p2Src=//y1.yzimgs.com/uploads_old/195777/2010081214205353_Old_1.jpg&p3Src=//y1.yzimgs.com/uploads_old/195777/2010081214205353_Old_2.jpg"