total chlorine sensor with clo detection

{"cid":"91199522","title":"Total Chlorine Sensor Membrane Covered Water Quality Sonde 4 ~ 12pH","imgUrl":"https:\/\/img.chinax.com\/nimg\/1b\/fc\/17ce75127f892bd5c95552ce6d6f-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Daruifuno","Model Number":"CP2.1 CP3","Minimum Order Quantity":"Negotiable","Certification":"CE","Place of Origin":"China","Product Name":"Total Chlorine Sensor","Product Model":"Chlorine Sensor CP2.1 and CP3","Measuring System":"Membrane covered, amperometric 2-electrode system","PH Range":"4 ~ 12","Pressure Range":"0 ~ 0.5bar","Flow Rate":"30L \/ h,low flow-dependence","Temperature Range":"0 ~ 45 \u2103","Response Time":"T90 2min."}}

{"cid":"91211450","title":"EC4-1000-H2S Air Quality Gas Sensors Hydrogen Sulfide Electrochemical Sensor","imgUrl":"https:\/\/img.chinax.com\/nimg\/87\/74\/aa8511f6979e3fa176359c324633-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"SGX","Model Number":"EC4-1000-H2S","Minimum Order Quantity":"1","Delivery Time":"3-5workingdays","Place of Origin":"UK","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Packaging Details":"Standard Package","Range":"0 - 1000 ppm","Sensitivity":"50 - 130 nA\/ppm H2S","Zero in air at 20 \u00b0C":"<\u00b18 ppm H2S","Resolution":"1 ppm H2S","Expected lifetime":"2 years","Response time, t90":"<45 s"}}