how to clean o2 sensor

{"cid":"91211450","title":"YJJ LOX-02-F L0X-O2-F UK Fluorescent Oxygen O2 Sensor 0-25% For Medical Use","imgUrl":"https:\/\/img.chinax.com\/nimg\/52\/c6\/d9fdb71dafaa87f7760d5bd88af0-200x200-1.jpg","attrs":{"Brand Name":"SST","Model Number":"LOX-02-F L0X-O2-F","Minimum Order Quantity":"1","Delivery Time":"3 days","Place of Origin":"Britain","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"2200","Packaging Details":"boxed","Supply voltage (Vs)":"4.5-5.5 Vdc","Supply current (ls)":"<7.5mA (single sample per second streaming)","Output Type":"3.3V TTL level USART","Operating temperature":"-30\u00b0C ~ +60\u00b0C","Storage temperature":"-30\u00b0C ~ +60\u00b0C"}}

{"cid":"91199635","title":"MF4600 Series Digital Argon Gas Medical Oxygen Flow Meter Sensor O2 N2O","imgUrl":"https:\/\/img.chinax.com\/nimg\/6a\/88\/d14985d4b1114dd8822aa11d4222-200x200-1.jpg","attrs":{"Price":"290~320USD\/PCS","Brand Name":"Yunyi","Model Number":"MF4600","Minimum Order Quantity":"1","Delivery Time":"10 work days","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T, Western Union","Supply Ability":"100pcs per week","Packaging Details":"Carton Packaging","Name":"Mass flow meter","Flow Range":"0~100,200,500, 0~1,2,5, 0~10,20,50","Turndown ratio":"50:1","Accuracy":"\u00b1(2.5+0.5FS)%","Repeatability":"0.8%","Output drift":"\u00b10.12%\/\u2103"}}

{"cid":"91202321","title":"Riken Keiki RX-8700 High Accuracy Portable Gas Monitor HC\/H2S\/O2 Detector In Stock","imgUrl":"https:\/\/img.chinax.com\/nimg\/6e\/c8\/596115c64cd2d1540d0ec789eb11-200x200-1.jpg","attrs":{"Price":"USD$3800\/PC","Brand Name":"RIKEN KEIKI","Model Number":"RX-8700","Minimum Order Quantity":"1","Delivery Time":"4 weeks","Certification":"CCC.CE","Place of Origin":"Japan","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"100","Packaging Details":"Original","Model number":"RX-8700","Detection range (HC)":"0 to 100.0 %LEL \/ 2 to 100.0 vol%","Detection range (O2)":"0 to 40.0 vol% (0 to 25.0 vol%)","Detection range(H2S)":"0 to 100.0 ppm (0 to 30.0 ppm)","Detection range[High":"9","Power source":"Lithium ion battery unit or Dry battery unit","Continuous[Lithium ion battery unit":"9","Continuous [Dry battery unit":"9","Dimensions":"Approx. 154 (W) 81 (H) 163 (D) mm (excluding projections)"}}