姜堰市正大科教仪器设备厂(ZD Instrument Corp.)是目前中国*大的专业生产手提式、袖珍式、迷你式、防水型、全防水型笔式PH Meter系列；台式PH Meter系列; 土壤酸碱度/湿度计;PH复合电极系列、水簇馆专用PH复合电极、PH皮肤电极、电导电极、ORP复合电极以及DO溶氧电极等系列;Nutra-Wand™ TDS Meter（PPM/EC/CF）无土栽培植物根生长营养测试仪系列、挂壁式pH&TDS/EC/Temp组合监控器以及手提式、迷你式、防水型、全防水型TDS、CF、EC Check、ppm、ppt、uS/cm、mS/cm Testr等电导率仪系列;实验室辅助设备磁力搅拌器、玻璃仪器等系列产品的厂家。工厂的专业化生产已形成一定的规模并拥有一批专门从事产品的研究、开发及制造工艺的工程技术人员。凭借着可靠优良的品牌和知名度，使ZD INSTRUMENT™商标产品获得来自全世界一百多个不同国家和地区客户的完全信赖。我们竭诚欢迎国内外各界朋友前来合作或其它方式的贸易合作！ 如贵公司对以上产品有兴趣,敬请浏览我工厂网页。www.zdinstrument.com
We-ZD Instrument Corp, is a specialized manufacturer of Electro-Chemistry instruments. Our main products are pH meters and Waterproof pen pH Tester, Soil pH Meter, pH & EC / TDS /Temp Controller and “NUTRA-WAND”T.D.S meters and pH & TDS/EC/Temp Monitor（Controller）, mini EC, CF, ppm, ppt, uS/cm, mS/cm and Waterproof pen EC,mS/cm/,ppm,TDS,uS/cm Testers and pH Combined electrode, Oxygen(DO),Conductivity & ORP electrodes and accessories. Bearing in our minds that our customers need most reliable measurements, we have always been doing our utmost to supply quality products in our yeas of history. Most of our products are CE certified, and are sold to all the continents in the world. At the same time, we deal some other lab instruments, such as refractometers, lab glassware and etc. in order to meet our customers' request. With our quality products, efficient service and competitive price, we sincerely hope to have more and more users. www.zdinstrument.com
Latest News: From the beginning of year 2005-2006, we are proud to introduce the new range of waterproof meters, including conductivity meters, TDS meters and PH meters and new soil pH meter, EC Pen Check WP, RS-100B "Nutrient-Wand" Digital TDS Meter, ZDRS-200A pH&EC/ppm,Temp Monitor（Controller）.