Netatmo
Netatmo Smart Indoor Air Quality Monitor
$120
Netatmo Smart Indoor Air Quality Monitor Overview
The Netatmo Smart Indoor Air Quality Monitor is a mid-range CO2 monitor that tracks CO2, Temperature, Humidity and Noise. It uses a NDIR sensor — the technology we recommend for reliable CO2 readings — with a stated accuracy of ±50 ppm across a 0-5000 ppm measurement range. At $120, it is aimed at home use and smart home setups.
In day-to-day use, the Smart Indoor Air Quality Monitor offers no built-in display — readings are accessed through a connected app or dashboard, plus WiFi and Bluetooth connectivity for logging trends and setting alerts, plus a stationary design (USB powered) best suited to continuous monitoring in a fixed location.
Best For
Full Specifications
| Price | $120 |
| Sensors | CO2, Temperature, Humidity, Noise |
| Sensor Type | NDIR |
| Connectivity | WiFi, Bluetooth |
| Display | No |
| Portable | No |
| Battery Life | USB powered |
| CO2 Accuracy | ±50 ppm |
| CO2 Range | 0-5000 ppm |
Pros & Cons
Pros
- ✓True NDIR CO2 sensor (not an eCO2 estimate)
- ✓Multi-parameter monitoring: CO2, Temperature, Humidity, Noise
- ✓WiFi connectivity for remote monitoring and history
Cons
- ✗No onboard display — requires the app to check readings
- ✗Not designed for portable use
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Frequently Asked Questions
Is the Netatmo Smart Indoor Air Quality Monitor accurate?+
The Netatmo Smart Indoor Air Quality Monitor uses a NDIR sensor with a stated accuracy of ±50 ppm over a range of 0-5000 ppm. NDIR is the proven reference technology for consumer CO2 monitoring.
What does the Netatmo Smart Indoor Air Quality Monitor measure?+
It measures CO2, Temperature, Humidity, Noise. CO2 is the key metric for judging ventilation — levels below 800 ppm indicate well-ventilated air.
Does the Netatmo Smart Indoor Air Quality Monitor need WiFi?+
The Netatmo Smart Indoor Air Quality Monitor supports WiFi (plus Bluetooth) for remote monitoring, but basic operation does not require constant connectivity.
Is the Netatmo Smart Indoor Air Quality Monitor worth it in 2026?+
At $120, the Netatmo Smart Indoor Air Quality Monitor is a solid choice for home use and smart home setups. Its NDIR sensor puts it ahead of cheaper eCO2 estimators. Compare alternatives in our monitor comparison tool before buying.