nursery school pm2 5 monitor

{"cid":"91223243","title":"Smart IAQ Controller Indoor Air Quality Instruments For CO PM2.5 TVOC & Pollen Detection","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/a6\/7b\/4b3632699ecd6bb00dfc49c3f3ef-200x200-1.jpg","attrs":{"Price":"$29 - $169","Brand Name":"GZAIR","Model Number":"1800P","Minimum Order Quantity":"10","Delivery Time":"5-8 work days","Certification":"CE, RoHS, FCC","Place of Origin":"China","Supply Ability":"10000 pieces per month","Packaging Details":"51\u00d744\u00d739cm","CO2 Measuring range":"(0-5000)ppm","Display resolution":"1ppm(0-1000);5ppm(1000-2000);10ppm(>2000)","Accuracy":"(0~3000)ppm:\u00b1(50ppm + 5% of reading);(>3000)ppm:\u00b1 7% of reading","Repeatability":"20ppm at 400ppm"}}

{"cid":"91202263","title":"Canada OEM\/ODM Shopee High-Accuracy Fuel-Cell Sensor Breathalyzer(WG8100)","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/24\/e3\/cb395c08e5d3cf892be3ad8852d5-200x200-1.jpg","attrs":{"Price":"Negotiable depends on quantity","Brand Name":"WG Sensor\u2122","Model Number":"WG8100","Minimum Order Quantity":"20 Pieces","Delivery Time":"10-20 work days","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T, L\/C, Western Union","Packaging Details":"As Client Required","Supply Ability":"2000 pcs per year","Name":"Canada OEM\/ODM Shopee High-Accuracy Fuel-Cell Sensor Breathalyzer(WG8100)","Sensor Type":"TFT screen\/Mobile App","Power Input":"2*AA NiMH Battery","Dimension":"122*67*31mm","OEM\/ODM":"Supported","E-Mail":"sales@wgsensor.com","WhatsApp":"+8613333637163"}}