Q-CL501 Portable Colorimeter rau Dawb Chlorine, Chlorine Dioxide (5-para) yog cov khoom siv kuaj dej tshaj lij uas muaj tag nrho cov khoom siv uas koj xav tau siv rau kev tshuaj xyuas dej hauv chav kuaj thiab kev sim teb. uas tuaj yeem tshawb pom cov tshuaj dawb dawb, tag nrho cov tshuaj chlorine, ua ke chlorine, chlorine dioxide, thiab chlorite.Nws ua raws li EPA txoj hauv kev, thiab txhua tus ntawm lawv tau ntsuas tus qauv nkhaus raws li, tsuas yog ntxiv cov reagents koj xav tau los ntsuas koj cov dej thiab kho koj cov khoom kuaj dej.