Testo 535 CO2 Meter

Technical specifications:

This instrument for measuring the concentration of CO2 in the air, with a 2-line backlit LCD screen, is characterized by having a stable 2-channel long-term infrared sensor, which is extremely precise and maintenance-free. Furthermore, it not only allows the CO2 concentration to be measured in real time, but it is also capable of monitoring these conditions in the long term, thanks to the calculation of maximum, minimum and average values.

The Testo 535 CO2 Meter can be used to monitor the environment in interior spaces such as buildings, schools, offices and cinemas. Furthermore, given its versatility, it can be used safely in any application area where it is necessary to know the CO2 concentration of the air.



Among other features of the Testo 535 CO2 Meter, the following can be mentioned:

- It has a two-line LCD screen, which makes it easy to read the measurements made, even in places with low visibility,

- It has a measurement range that goes from 0 ppm to 9,999 ppm of CO2 or from 0% Volumetric to 0,999% Volumetric,

- It has an accuracy level of ± 75 ppm of CO2 +3% of the measured value,

- It has dimensions of 190 mm long x 57 mm wide x 42 mm high,

- It has a weight of 300 grams,

- It does not need repeated adjustments for long-term measurements, making it easy to use,

- For its operation, it uses 1 square 9-volt battery, which gives it an autonomy of up to 6 hours of operation,

- It brings an automatic shutdown function after 10 minutes, which allows to extend the life of your battery,

- With the Testo portable printer (sold separately) it is possible to print the measured values on site,

- With the purchase of the Testo 535 CO2 Meter, the batteries and the equipment calibration protocol are also included.