If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Portable Multi-Parameter Water Quality Analyzer Model:PL-1B、2B、3B Type:Portable Testing method:Platinum cobalt standard colorimetric method. Measuring range: residual chlorine, total chlorine, Combined residual chlorine:0~5 mg/L carbon dioxide:0~10mg/L ozone:0~2 mg/L Min. readout:0.01mg/L Error:±5%FS Repeatability:≤3% *Subject: *Your Name: User type:PersonalBusinessDistributor *E-mail: *Phone: WhatsApp: Skype: Company: *Content: *Captcha:Math Captcha + 38 = 42 Submit Δ