Airthings
Airthings Space Pro
$300
Airthings Space Pro Overview
The Airthings Space Pro is a professional-grade CO2 monitor that tracks CO2, Temperature, Humidity, VOC, PM2.5, Atmospheric Pressure, Light and Noise. It uses a NDIR sensor — the technology we recommend for reliable CO2 readings — with a stated accuracy of ±50 ppm across a 400-5000 ppm measurement range. At $300, it is aimed at commercial buildings, offices and smart home setups.
In day-to-day use, the Space Pro offers no built-in display — readings are accessed through a connected app or dashboard, plus WiFi 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 | $300 |
| Sensors | CO2, Temperature, Humidity, VOC, PM2.5, Atmospheric Pressure, Light, Noise |
| Sensor Type | NDIR |
| Connectivity | WiFi |
| Display | No |
| Portable | No |
| Battery Life | USB powered |
| CO2 Accuracy | ±50 ppm |
| CO2 Range | 400-5000 ppm |
Pros & Cons
Pros
- ✓True NDIR CO2 sensor (not an eCO2 estimate)
- ✓Multi-parameter monitoring: CO2, Temperature, Humidity, VOC, PM2.5, Atmospheric Pressure, Light, Noise
- ✓WiFi connectivity for remote monitoring and history
Cons
- ✗No onboard display — requires the app to check readings
- ✗Not designed for portable use
- ✗Premium price compared with entry-level alternatives
Compare this monitor with others using our Monitor Comparison Tool
Frequently Asked Questions
Is the Airthings Space Pro accurate?+
The Airthings Space Pro uses a NDIR sensor with a stated accuracy of ±50 ppm over a range of 400-5000 ppm. NDIR is the proven reference technology for consumer CO2 monitoring.
What does the Airthings Space Pro measure?+
It measures CO2, Temperature, Humidity, VOC, PM2.5, Atmospheric Pressure, Light, Noise. CO2 is the key metric for judging ventilation — levels below 800 ppm indicate well-ventilated air.
Does the Airthings Space Pro need WiFi?+
The Airthings Space Pro supports WiFi for remote monitoring, but basic operation does not require constant connectivity.
Is the Airthings Space Pro worth it in 2026?+
At $300, the Airthings Space Pro is a solid choice for commercial buildings, offices and smart home setups. Its NDIR sensor puts it ahead of cheaper eCO2 estimators. Compare alternatives in our monitor comparison tool before buying.