GSS
GSS CozIR-LP Probe
$120
GSS CozIR-LP Probe Overview
The GSS CozIR-LP Probe is a mid-range CO2 monitor that tracks CO2, Temperature and Humidity. 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 DIY projects and professional applications.
In day-to-day use, the CozIR-LP Probe offers no built-in display — readings are accessed through a connected app or dashboard, plus UART and I2C connectivity for logging trends and setting alerts, plus a stationary design (Ultra-low power (module)) best suited to continuous monitoring in a fixed location.
Best For
Full Specifications
| Price | $120 |
| Sensors | CO2, Temperature, Humidity |
| Sensor Type | NDIR |
| Connectivity | UART, I2C |
| Display | No |
| Portable | No |
| Battery Life | Ultra-low power (module) |
| CO2 Accuracy | ±50 ppm |
| CO2 Range | 0-5000 ppm |
Pros & Cons
Pros
- ✓True NDIR CO2 sensor (not an eCO2 estimate)
Cons
- ✗No onboard display — requires the app to check readings
- ✗No wireless connectivity for logging or alerts
- ✗Not designed for portable use
Compare this monitor with others using our Monitor Comparison Tool
Frequently Asked Questions
Is the GSS CozIR-LP Probe accurate?+
The GSS CozIR-LP Probe 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 GSS CozIR-LP Probe measure?+
It measures CO2, Temperature, Humidity. CO2 is the key metric for judging ventilation — levels below 800 ppm indicate well-ventilated air.
Does the GSS CozIR-LP Probe need WiFi?+
No. The GSS CozIR-LP Probe works standalone.
Is the GSS CozIR-LP Probe worth it in 2026?+
At $120, the GSS CozIR-LP Probe is a solid choice for DIY projects and professional applications. Its NDIR sensor puts it ahead of cheaper eCO2 estimators. Compare alternatives in our monitor comparison tool before buying.