Haijing residual chlorine test paper 00-0.1-0.5-1-3-5-7-10mg/L00 times/box of total residual chlorine in waste water

Portable oxygen PH detector chemical 0-14.00 reduction potential ORP ± 1000mv model TR30 rapid test

Haijing nickel rapid detection package 0-0.3-0.5-1-2-5mg/L surface water groundwater drinking rapid detection

Portable conductivity detector TDS salinity all-in-one detector temperature model HC100 quick test

Portable dissolved oxygen DO detector percentage 200.0 oxygen concentration 20.00mg/L detector temperature

Portable conductivity test pen 0-20.00ppt model TC30 field conductivity rapid test

Portable PH Test Pen 0-14.00PH Resolution 0.01 Model TP30 Field PH Quick Test

Portable dissolved oxygen do test pen 0-20.00mg/L0-20.00 model TD30 field DO rapid measurement

Portable redox potential ORP test pen ± 1000mv model TR30 field orp rapid test

Portable residual chlorine in water test pen 0-10.00mg/L model TF30 field residual chlorine concentration test

Portable swimming pool water residual chlorine/total chlorine/cyanuric acid/urea/hardness/PH multi-parameter detector

Portable dissolved ozone test pen in water 0-10.00mg/L model TOZ30 field ozone concentration test

Portable Total Chromium Ferrous Copper Nickel Aluminum Cadmium Zinc Manganese Multi-parameter Detector Domestic Sewage Industrial Waste River Inspection

Portable COD Ammonia Nitrogen Total Phosphorus Total Nitrogen Multi-parameter Detector M-601 Domestic Sewage Industrial Waste River Inspection

Haijing anionic surfactant rapid detection package 0-5-10-15-25-50mg/L

Sea net heavy metal manganese rapid test package 0-0.5-1-2-5-10mg/L50 times box test package test reagent

Haijing heavy metal aluminum rapid test package 0-0.05-0.1-0.2-0.5-1-2mg/L50 times box test package

Haijing Volatile Phenol Rapid Test Package 0-0.2-0.5-1-2-5-10mg/L50 Box Test Package Test

Portable nitrite detector 0-1mg/L to nitrite meter model S-303 nitrite fast

Portable chlorine dioxide residual chlorine total chlorine ozone 4 in 1 disinfectant residue detector model M-403

Portable ozone detector 0.03-6.50mg/L model S-30A1 water quality on-site rapid detection test machine

Portable nitrite detector 0-1mg/L with NaNO2 meter model S-308 nitrite fast

Portable ozone detector 0-2.5mg/L model S-301 water quality on-site rapid detection of dissolved in water

Portable nitrate detector 0.05-0.7mg/L based on nitrogen meter model S-303A nitrate rapid detection

Portable chlorine dioxide detector 5.00-999.00mg/L model S-307 water quality on-site rapid detection

Portable chlorine dioxide detector 0-5.00mg/L model S-306 water quality field rapid inspection test

Portable residual chlorine total chlorine detector 0-10.00mg/L model S-302A water quality field rapid inspection test

Portable active oxygen detector 0-1mg/L model S-310 active oxygen medical wastewater detection

Portable nitrate detector 0-5.00mg/L based on NaNO3 meter model S-309 nitrate rapid detection

Portable Total Chlorine/Total Hardness Tester Total Chlorine 0-3mg/L Hardness 0-10mg/L Model D-210

Portable residual chlorine total chlorine detector 0-3.00mg/L model S-302 water quality on-site rapid detection test machine

Haijing phosphate test paper is calculated as PO4: 0-3-10-25-50-100-200-400mg/L100 times

Total nitrogen assay kit 0-5-10-25-50-100mg/L industrial sewage domestic wastewater rapid detection kit

Soft water hardness determination kit 0.4-20mg/L (calcium carbonate meter) titration method for rapid detection

Calcium and magnesium hardness determination kit 10-200mg/L (calcium and magnesium hardness) titration method for rapid detection

Rapid Titration of Silicate Kit 0.1-0.3-0.5-0.7-1.0-1.5-2.0-3.0mg/L