A meter that uses traffic light colours to show when a room needs fresh air. The CO2 Plus air quality meter monitors CO2, temperature and humidity, supporting teachers and educators with proper ventilation.
At a glance
- Traffic light display: Green, amber, red for CO2 levels
- 3 measurements: CO2, temperature, humidity
- History: 24-hour average
- Alarm function: switchable
- CO2 range: 0 to 9,999 ppm
- USB power: Cable included, power adapter not included
How children use it
The display flickers when the air needs refreshing, and children quickly learn: amber means open the window. The little columns grow with each breath, green is rewarding, red is a clear signal. Room air quality becomes a shared project that the whole group actively participates in.
Safety and materials
| Materials | Plastic, metal |
|---|---|
| Dimensions | 10.5 x 3.3 x 5.6 cm |
| Range | CO2 0–9,999 ppm, Temperature 0–50°C, Humidity 1–95% |
| Power supply | USB cable (power adapter not included) |
Shipped from Germany. Invoice payment available for authorities and public institutions.
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