This highly versatile probe offers Bluetooth® connectivity, allowing the readings to be transmitted wirelessly to a compatible measuring instrument (sold separately), making data collection and analysis particularly convenient. The probe can measure the CO₂ concentration, air humidity, and temperature in real time, and also calculates key environmental parameters such as wet bulb temperature, dew point, and absolute humidity.
For precise measurements, the probe compensates for air density via integrated absolute pressure measurement, ensuring reliable and accurate results. The Bluetooth® connection allows you to transmit data from up to a distance of 20 metres, providing flexibility in your measurements without the clutter of cables.
Additionally, the probe has a user-friendly measurement menu that supports long-term monitoring and allows you to store individual readings directly in the measuring instrument with the push of a button. It also records trends over time, which can help you track changes in indoor air quality and make informed decisions based on real-time data.
The testo CO₂ Probe with Bluetooth® is part of a system where a universal handle (sold separately) can be used to connect various probe heads, saving both space and equipment. The Bluetooth® handle simplifies the process of carrying out measurements, while the option for a cable handle provides a reliable alternative when Bluetooth® signals are not permitted.
With the intelligent calibration concept, only the probe head needs to be calibrated, reducing downtime and improving the efficiency of your equipment.
Areas of Application
The CO₂ probe is particularly suitable for monitoring the indoor climate in workplaces and facilities such as:
- Offices
- Production Areas
- Storage Facilities





























