Watertest Co., Ltd. &lsquo;s commitment &nbsp;to international standards. We strive to provide the best technical support for all types of &nbsp;water quality analyzers for process control systems to satisfy our customers , such as measuring pH, DO , CO2 ,Total Cell Density &nbsp;and Viable Cell Density . Which meet the increasing demand on implementing PAT in the bio-pharmaceutical and Synthetic Biology Technology(SynBio) , rapidly growing We also offer conductivity standards of 1.3 and 5 &micro;S/cm with a certified accuracy of &plusmn;1% and &nbsp;lifetime of 1 and 3 years for calibration for low range &nbsp; We are also proud to introduce our own innovative products such as Residual Chlorine Test Kit &nbsp;and Total Hardness Test Kit which using only one reagent . Our innovation product has been certified for MIT ( Made in thailand) from the Federation of Thai Industries. Our innovation products are precision and competitive quality with all imported products.