uHoo
uHoo Aura
$330
uHoo Aura Overview
The uHoo Aura is a professional-grade CO2 monitor that tracks CO2, Temperature, Humidity, VOC, PM2.5, Ozone, NO2, Formaldehyde and Atmospheric Pressure. It uses a NDIR sensor — the technology we recommend for reliable CO2 readings — with a stated accuracy of ±50 ppm across a 400-10000 ppm measurement range. At $330, it is aimed at professional applications, home use, offices and smart home setups.
In day-to-day use, the Aura 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 | $330 |
| Sensors | CO2, Temperature, Humidity, VOC, PM2.5, Ozone, NO2, Formaldehyde, Atmospheric Pressure |
| Sensor Type | NDIR |
| Connectivity | WiFi |
| Display | No |
| Portable | No |
| Battery Life | USB powered |
| CO2 Accuracy | ±50 ppm |
| CO2 Range | 400-10000 ppm |
Pros & Cons
Pros
- ✓True NDIR CO2 sensor (not an eCO2 estimate)
- ✓Multi-parameter monitoring: CO2, Temperature, Humidity, VOC, PM2.5, Ozone, NO2, Formaldehyde, Atmospheric Pressure
- ✓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 uHoo Aura accurate?+
The uHoo Aura uses a NDIR sensor with a stated accuracy of ±50 ppm over a range of 400-10000 ppm. NDIR is the proven reference technology for consumer CO2 monitoring.
What does the uHoo Aura measure?+
It measures CO2, Temperature, Humidity, VOC, PM2.5, Ozone, NO2, Formaldehyde, Atmospheric Pressure. CO2 is the key metric for judging ventilation — levels below 800 ppm indicate well-ventilated air.
Does the uHoo Aura need WiFi?+
The uHoo Aura supports WiFi for remote monitoring, but basic operation does not require constant connectivity.
Is the uHoo Aura worth it in 2026?+
At $330, the uHoo Aura is a solid choice for professional applications, home use, offices and smart home setups. Its NDIR sensor puts it ahead of cheaper eCO2 estimators. Compare alternatives in our monitor comparison tool before buying.