Indoor Air Quality Monitor for CO2, Formaldehyde & TVOC

Keep an eye on the air in any room. This compact indoor air quality monitor shows carbon dioxide (CO2), formaldehyde (HCHO), and TVOC levels next to temperature and humidity on a clear color display, so you can check how your space is doing at a glance.

Set it on a desk, nightstand, or shelf in the home office, bedroom, nursery, or a freshly painted or renovated room. The built-in rechargeable battery lets you move it from room to room, or leave it plugged in over USB for continuous readings.

• Reads carbon dioxide (CO2), formaldehyde (HCHO), and TVOC (total volatile organic compounds), plus temperature and humidity
• Color screen shows every reading at once and refreshes in real time
• Rechargeable battery, or run it plugged in over USB for continuous monitoring
• Compact and portable for the bedroom, office, nursery, or car
• Ships from US warehouses, typically 5 to 7 business days
• Free shipping on orders over $99
• 30-day returns on items in original condition