We were established in 2006 and are a professional manufacturer engaged in the research, development, production, sale and service of TDS meters, PH meters, ORP meters, Conductivity meters, Water electrolyte analyzers, PH test liquid machines, OTO test liquid machines, hardness test liquid machines, calcium and magnesium test liquid machines, water quality test machines, water quality analysis meters and a series of professional water quality test tools. OEM/ODM orders are welcome. Our products are water filters, waterproof brainpower water circuit breakers, water quality detectors, water quality demonstrators, water quality detectors and others. Guangzhou 3win Electronic Technoilogy Co., Ltd is a located in Guangzhou with convenient transportation access. We also offer all kinds of international brand OEM/ODM services. At present, we export our products to America, England, India, Indonesia and Malaysia. We have established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we are looking forward to even greater cooperation with overseas customers based on mutual benefits. Please feel free to contact us for more details. Our phone number is 86-20-61139266 86-20-61139266 . Guangzhou 3win Electronic Technoilogy Co., Ltd is a looking forward to establishing relationships with you in the near future.