Nitrogen amonia Nduzi Nhọrọ: Ngwa Ngwa Q-3N Nitrogen Nitrogen & Nitrate Nitrogen & Nitrite Nitrogen Portable Colorimeter T-CP40 Agba agba agba agba mmiri maka mmiri ọrinụ .ụ T-6800 Multi-parameters Portim Colorimeter T-AM Aquaculture Portim Colorimeter Onye nyocha ntanetị Onye nyocha mmiri mmiri K600 （K-Y02 Ngwa ụlọ nyocha Z-T700 Intelligent Multi-parameters Analyzer Z-D700 Onye nyocha ọtụtụ ihe Z-T500 Intelligent Multi-parameters Analyzer Z-D500 Onye nyocha ọtụtụ ihe TA-60 Intelligent Multi-function Water Analyzer TA-98 UV Spectrophotometer a na-ahụ anya
