泰州市正大科教儀器設備廠(正大儀器-ZD Instrument Ltd)是目前中國 專業生產電化學和土壤測試儀器的廠家。我們的主要產品有：酸碱度計、土壤酸碱度和濕度檢測儀、土壤EC檢測儀、土壤速效N-P-K檢測儀、電導率儀、“Nutra Wand®”水栽培營養測試儀、TDS、PPM、PPT、mS/cm、uS/cm、EC、CF檢測儀、家用及海水鹽度檢測儀；挂壁式pH&TDS/EC/mV/Temp組合監視器和pH組合電極；水簇館專用PH復合電極；溶解氧（DO）電極；導電性和ORP電極等。我們牢記客戶需要最可靠的儀器，多年來我們一直在盡 努力提供優質的產品，在研發團隊的努力下，新產品不斷涌現。
近年來通過了ISO9001質量管理體系認証，ISO14001環境管理體系認証，獲得了民營科技企業、高新技術企業、國家質量檢驗標準合格產品、中國 產品、國家科技創新企業、中國分析儀器行業 企業、中國分析儀器行業投資價值企業、中國分析儀器行業影響力企業、中國優質服務誠信AAA級企業、重合同守信用企業，產品大多通過CE認証，並銷往世界各大洲。我們竭誠歡迎國內外各界朋友前來合作或其他形式的貿易合作.
ZD Instrument Ltd.(Taizhou Zhengda Scientific Education Instrument&Equipment Factory) is a specialized manufacturer of electro-chemistry and soil testing instruments. Our main products are pH Meters, Soil pH & Moisture Tester, Soil EC Tester, Soil Available N-P-K Tester, Conductivity Meters, "Nutra Wand®" Hydroponics Nutrient Tester, TDS, PPM, PPt, mS/cm, uS/cm Meters, EC, CF Check, Household and Seawater Salinity Tester, Continuous Reading pH/Conductivity/ mV/Temperature Monitors and pH Combined Electrodes, Water Cluster pH Composite Electrode, Dissolved Oxygen (DO) Electrodes, Conductivity and ORP Electrodes, etc. Bearing in our mind that our customers need most reliable instruments, we have always been doing our utmost to supply quality products in our years of history.With the efficient efforts of our R&D team, new products are coming out all the time.
We have passed the ISO9001 Quality and ISO14001 Environmental Management System Certification in recent years and Obtained Private Technology Enterprises, High-tech Enterprises, National Quality Inspection and Standard Qualified Products, Famous Brands in China, National Science and Technology Innovation Enterprise, Analytical Instrument Industry Famous Enterprise in China,Analytical Instrument Industry Investment Value Enterprise in China,Influential Enterprises in the Analytical Instrument Industry in China, High-quality Service Integrity AAA-level Enterprise in China, Contract-honoring and Trustworthy Enterprise. Most of our products have also passed CE certification and are sold to all the continents in the world. We wholeheartedly welcome friends from all walks of life at home and abroad to come to cooperate or other forms of trade cooperation.www.zdinstrument.com www.zdinstrument.com
