water cod sensor for sewage disposal

{"cid":"91188394","title":"2020 hot sale low cost water cod sensor for sewage disposal and river cod monitoring","imgUrl":"https:\/\/img.chinax.com\/nimg\/8a\/61\/51baf5d2d1cd33a293d53fe921ae-200x200-1.jpg","attrs":{"Price":"$2,000.00 - $3,000.00\/pieces","Brand Name":"Kacise","Place of Origin":"China","Packaging Details":"each unit has individual box and all boxes are packed in standard packages or customers requests available","Supply Ability":"500 Piece\/Pieces per Month","Product name":"COD Sensor","Application":"COD Analysor","Digital Sensor":"RS-485","Testing":"SAC, COD,TOC","Port":"Xi'an or other"}}

{"cid":"91206681","title":"SS316L Online Bod Cod TSS Sensor For Sewage Treatment Plant","imgUrl":"https:\/\/img.chinax.com\/nimg\/6e\/a6\/38f0d91a84a90c9fb03a5ad12337-200x200-1.jpg","attrs":{"Price":"$1000.00 - $3000.00\/ Piece","Brand Name":"Desun Uniwill","Model Number":"DS-500","Minimum Order Quantity":"0~100 pcs","Delivery Time":"7~ 15 working days","Certification":"CE","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T","Supply Ability":"0~1000 pcs","Packaging Details":"Carton packaging","Output signa":"RS-485, MODBUS protocol","Range":"BOD 1.5 to 410mg\/l equiv KHP, COD 2.5 to 1000 mg\/l equiv. KHP","Accuracy":"0.01mg\/L COD","Temperature range":"+5 ~ 45\u00b0C","IP Grade":"IP68","Calibration":"1 or 2 point calibration","Power Supply":"DC 12V +\/-5%, current <50mA (when there is no cleaning brush)","Sensor Size":"54*325.5 mm","Cable length":"Default 5 m","Housing Material":"SS316L"}}