族观赏鱼盐度计海水盐度仪光学盐度仪手持盐度计测量范围：盐（salinity)0~100‰盐比重1.000~1.070sg***小刻度值：盐1‰盐比重0.001sg手机：18660722897电话：0537-2583066***:734595713邮箱：Juexingk03@)