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