HANGZHOU QIWEI INSTRUMENT CO., LTD

My company's products: Precision benchtop PH meter Precision portable PH meter Microcomputer type desktop PH meter Microcomputer portable PH meter Pen acidity meter Pen ORP Online PH-ORP meter Desktop ORP meter Precision conductivity meter Microcomputer type conductivity meter Microcomputer type portable conductivity meter Pen conductivity meter Pen TDS meter Pen salinity meter Sodium ion meter Fluoride ion meter Chloride ion meter Portable dissolved oxygen meter Benchtop dissolved oxygen meter Pen type dissolved oxygen meter Portable turbidity meter" Benchtop turbidity meter" Portable dual range turbidimeter Benchtop dual range turbidimeter Desktop three-range turbidity meter Microcomputer type beer turbidity meter Microcomputer type beer turbidity dual-purpose instrument Precision Platinum-Cobalt Colorimeter Microcomputer type platinum-cobalt colorimeter Portable colorimeter Microcomputer beer colorimeter Microcomputer type beer color dual-purpose instrument Benchtop residual chlorine analyzer Portable residual chlorine analyzer Portable chlorine dioxide analyzer Benchtop chlorine dioxide analyzer Portable ozone analyzer Benchtop ozone meter Portable nitrite analyzer Benchtop nitrite analyzer Portable total phosphorus analyzer Benchtop total phosphorus analyzer Portable ammonia nitrogen analyzer Bench-top ammonia nitrogen analyzer Portable white meter Portable fluorescent whiteness meter Desktop whiteness meter Desktop whiteness meter Desktop microcomputer whiteness meter Desktop microcomputer fluorescent whiteness meter Microcomputer desktop whiteness meter Desktop microcomputer fluorescent whiteness meter Dark box ultraviolet analyzer Three-purpose ultraviolet analyzer Portable UV analyzer Digital constant speed mixer Digital display high speed disperser Digital high speed homogenizer Colony counter Disk quantitative sampler Infrared drying oven Gloss meter COD tester