- Qualifies if
- A monitor that reads particles, VOCs or carbon dioxide.
- Ranked by
- Price seen (lowest first)
- Shown
- The top 8 of 16 products in our catalog that meet the rule.
Temtop S1 PM2.5 Air Quality Monitor
Temperature accuracy: 1 degree Celsius. Humidity range: 10-99%. Readings need a few hours to settle after moving it.
Temtop Portable CO2 Meter
Humidity range: 99 percent. Readings need a few hours to settle after moving it.
GoveeLife H5106 Air Quality Monitor
Multi-sensor air quality monitor. Readings need a few hours to settle after moving it.
INKBIRDPLUS PTH-10C CO2 Monitor
Co2 monitor. Readings need a few hours to settle after moving it.
Newentor C1 CO2 Monitor
Co2 monitor. Readings need a few hours to settle after moving it.
SwitchBot CO2 Detector
Co2 monitor. Readings need a few hours to settle after moving it.
lifebasis 11-in-1 Air Quality Monitor
Multi-sensor air quality monitor. Readings need a few hours to settle after moving it.
INKBIRDPLUS PTH-9A CO2 Monitor
Co2 monitor. Readings need a few hours to settle after moving it.
How to choose between them
Pick the sensors you'll act on: PM2.5 tells you when to run a purifier, CO2 when to ventilate, humidity when to (de)humidify.
VOC readings are relative; use them for trends, not exact levels.
Rankings follow the rule and order stated above, using makers' published specifications and listed prices. How we research · Disclosure