The indoor air quality monitor accurately assesses multiple measures of air quality including concentrations of total natural and synthetic volatile organic compounds causing most , and fine particulate dust matter. This air quality monitor has incorporates a electrochemical semiconductor sensor to measure natural/synthetic organic compound levels. Features - Color: White. - Material: ABS and PVC. - Size: 9.00 x 7.00 x 4.00cm/ 3.54 x 2.75 x 1.57 inch. - Indoor air quality monitor, which can accurately detect carbon dioxide, , volatile organic compounds, particulate matter. - These readings involve the detection of , harmful chemicals and pollutants in the air. - Such as carbon dioxide, , , fog, dust, alcohol, glue, paint, ink, etc. - The easy-to-carry quality monitor can help us detect gaseous air pollution in homes, kitchens, bedrooms, offices, schools, car, hotels, travel, camping, parties, etc. - Especially when there are babies, children and regnant woman. Package list: 1 x gas detector