best co detector for home use

{"cid":"91199742","title":"long Standby 1.0 Lux 90 degree Smoke Detector Hidden Cam Wireless","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/e8\/b9\/681a39e007ca0de79c06f54a11e0-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"FORTHAUS.","Model Number":"SD200","Minimum Order Quantity":"50 PCS","Delivery Time":"5-8 days","Certification":"CE.FCC.ROHS","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"100pcs,5days","Packaging Details":"Carton","Power Source":"Battery Rechargeable","Video Capture Resolution":"HD 1080P","Product Name":"Smoke Detector Spy Camera","Alert Type":"Audio and Motion","Wireless Communication":"Wi-Fi","Special Feature":"Long Battery Last"}}

{"cid":"91178288","title":"6-in-1 Soil Detector | PH, Moisture, Temperature, Light, Humidity, Fertility Testing | Ideal for Indoor, Outdoor, and Garden Use","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/43\/e0\/beb5f9b9c91db1e76664de8fb382-200x200-1.jpg","attrs":{"Price":"25.99","Brand Name":"yieryi","Model Number":"THE01879","Minimum Order Quantity":"1","Delivery Time":"5-8 working days","Place of Origin":"china","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union","Supply Ability":"10000","Packaging Details":"packing","Color":"black","Application":"Agriculture, gardening, soil testing","Temperature Range":"-10\u00b0C-80\u00b0C;14\u00b0F-176\u00b0F","Auto Power Off":"After 5 minutes of inactivity","Resolution":"0.01 pH, 0.01 mS\/cm, 0.1\u00b0C","Function":"tester for soil ph and fertility","Measurement Range":"0-10","Display":"LCD","Operating Temperature":"0-50\u00b0C","Warranty":"1 year","Storage Temperature":"-20-60\u00b0C","Dimensions":"150mm x 29mm x 20mm","Measurement Units":"pH, EC, and Temperature","Npk Range":"0-1999mg\/kg","Probe Length":"8.5cm"}}