Product Name: High Quality Portable Water Electrolysis Instruments Model NO.: electrolysis Material: Iron and Aluminum Trademark: OEM Transport Package: Neutral(Blank) Specification: CE Origin: Ningbo or Jinan China HS Code: 842199 Product Description Water electrolyzer is also known as a solid precipitate promoting instrument.It was approved by the US Food and Drug Administration (FDA),use to identify and detect water quality, according to different colors , we can easily distinguish water quality.Water electrolyzer is used to compare different water quality - the difference between pure water, mineral water and ordinary water. It is not the ultimate water quality testing equipment.machine casing materialABS plasticCathodeAluminum barAnodeIron Bar