co2 ventilation controller pm2 5 voc

{"cid":"91224765","title":"RDF870KN Flush Mount Touch KNX PM2.5 CO2 Ventilation Controller S55770-T407","imgUrl":"https:\/\/img.chinax.com\/nimg\/08\/cf\/5b9a2514bea9f64cab25a60839d9-200x200-1.jpg","attrs":{"Model Number":"S55770-T407","Minimum Order Quantity":"5","Delivery Time":"7 Days","Certification":"CE RoHS","Color Specification":"Smoke gray appearance","Mounting":"Flush mounting design","Payment Terms":"T\/T,Western Union","Technology":"Optional Nano Molding Technology","Packaging Details":"Carton","Control Features":"Scene saving\/retrieval","Use":"Intelligent Building Automation","Place of Origin":"EU","Protection Rating":"IP20 (dustproof design)"}}

{"cid":"91225759","title":"7 Inch Color Touchscreen Ventilation Controller with Real Time CO\u2082 VOC PM2.5 Monitoring WiFi App Control","imgUrl":"https:\/\/img.chinax.com\/nimg\/08\/a4\/27b655625950a7eafb1cb8ad2a73-200x200-1.jpg","attrs":{"Price":"$103","Brand Name":"OEM or neutral","Model Number":"G7 Pro","Minimum Order Quantity":"1","Delivery Time":"2-3 weeks","Application":"Villa, Hotel, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, Supermarket, Workshop, Park, Farmhouse, Other, Kitchen, Bathroom, Home Office, Living Room, Bedroom, Dining, Babies and Kids, Storage and Closet, Wine Cell","Shell Material":"PC and ABS","Payment Terms":"T\/T","RS485":"Support Modbus Protocol","Place of Origin":"China","WIFI Function":"Support Tuya app & Smart life app","Supply Ability":"100000pcs","Mounting":"Standard 86 wall mounting box","Certification":"CE and RoHS","Optional built in sensors":"VOC+PM2.5+CO2+Temperature+Humidity"}}

{"cid":"91211450","title":"YJJ MiCS-VZ-89TE 125 MW VOC Concentration Sensor for Monitoring Range 400-2000 ppm and Refresh Output Frequency 1 Hz","imgUrl":"https:\/\/img.chinax.com\/nimg\/a1\/bc\/8080b29a6c877a367504d3ec044c-200x200-1.jpg","attrs":{"Brand Name":"SGX","Model Number":"MiCS-VZ-89TE","Minimum Order Quantity":"1","Place of Origin":"Britain","Payment Terms":"L\/C, D\/A, D\/P, T\/T, , ","Supply Ability":"1000","Detection Method":"Semiconductor gas sensor, detecting a wide range of VOCs","Monitoring Range":"400-2000 ppm equivalent CO2 0-1000 ppb isobutylene equivalent tVOCs","PWM Output":"Pin 1 : TTL output 30Hz +\/-1%, Range 5\u202695%, duty cycle 3.3V","I2C Output":"Pin 2 and 4 : Pull-up of 4.7 kOhms on master SDA and SCL","Response Time":"Equivalent to conventional NDIR-CO2 sensors","Refresh Output Frequency":"1 Hz"}}