SGP40 CO2 eCO2 TVOC Carbon Dioxide Sensor Formaldehyde Air Quality Monitoring
SGP40 CO2 eCO2 TVOC Carbon Dioxide Sensor Formaldehyde Air Quality Monitoring Sensor Indoor Air Quality Sensor GY-SGP40. 1 SGP40 TVOC eCO2 CO2 Carbon Dioxide Sensor. You will need a suitable adapter to use the item in your country.