dpd method 8021 water quality testing reagent

{"cid":"91225496","title":"HACH 2119449-CN USEPA Approved Free Chlorine Reagent with DPD Method 8021 in Powder Pillows for Water Quality Testing","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/03\/433cc2307c886cb34192112ae52a-200x200-1.jpg","attrs":{"Price":"49.9 SUD","Brand Name":"HACH","Model Number":"2119449-CN","Minimum Order Quantity":"1","Delivery Time":"6-8WEEK","Supply Ability":"1PC 6-8WEEK","Datastorage":"Internal memory with capacity for thousands of readings","Dimensions":"Varies, e.g., handheld approx. 200x80x40 mm","Payment Terms":"T\/T","Calibration":"Automatic or manual calibration with standard solutions","Measurementparameters":"pH, Dissolved Oxygen, Turbidity, Conductivity, Total Dissolved Solids (TDS), Chlorine, Ammonia, Nitrate, Phosphate","Weight":"Typically between 200g to 1.5kg depending on model","Powersource":"Battery-powered or AC adapter","Portability":"Handheld or benchtop models available","Waterproofrating":"IP67 or higher for handheld devices","Displaytype":"LCD or Digital Screen","Responsetime":"Typically less than 30 seconds","Accuracy":"Typically \u00b10.01 pH, \u00b10.1 mg\/L DO","Operatingtemperature":"0\u00b0C to 50\u00b0C","Dataoutput":"USB, Bluetooth, RS232, or SD card","Productname":"Water Quality Analyzers","Measurementrange":"Varies by parameter, e.g., pH 0-14, DO 0-20 mg\/L"}}

{"cid":"91198828","title":"2105569-CN Hach Dpd Free Chlorine Method Reagent Powder Pillows","imgUrl":"https:\/\/img.chinax.com\/nimg\/4b\/5a\/3e8d2b660e52fd190699b2430dda-200x200-1.jpg","attrs":{"Brand Name":"HiYi","Model Number":"2105569-CN","Minimum Order Quantity":"1","Delivery Time":"3-7 days","Certification":"CE","Place of Origin":"China","Supply Ability":"1000 set\/month","Packaging Details":"paper carton","Instrument":"All except DR\/3000, DR\/2000","Range":"0.02 - 2.00 mg\/L Cl2","EPA compliant":"Yes","Method Name":"DPD","Quantity":"100 \/pk","Method":"8021"}}

{"cid":"91206681","title":"Automatically Dissolved Nitrogen Sensor water Economical ISO","imgUrl":"https:\/\/img.chinax.com\/nimg\/8a\/c0\/371e51d0b01b7917c99f5214fa81-200x200-1.jpg","attrs":{"Price":"Determined by the number of specific orders","Brand Name":"Desun Uniwill","Model Number":"DSN260","Minimum Order Quantity":"1","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T","Supply Ability":"1000","Packaging Details":"Standard export Carton packaging","Product Name":"Online Ammonia Nitrogen Sensor","Material":"POM","NH4-N Range":"0-2mg\/L","NH4-N Accuracy":"0.01mg\/L","Output":"RS-485","Power Supply":"6-12 V DC","PH Range":"2-12","PH resolution":"0.01","Brand":"Desun uniwill","Warranty":"1 year"}}