Testo 535 – Digital CO2 Measuring Instrument with App Connection

For indoor air quality and comfort, the measurement of the carbon dioxide content in the room air is crucial. To obtain precise results quickly, you need a suitable measuring instrument. The Testo 535 has you covered.

The compact CO₂ measuring instrument with its practical app connection allows you to carry out this important measurement easily and efficiently - and ensure comfort and a healthy indoor climate.

The measured values are reproducible and comparable even over longer periods due to the long-term stable infrared sensor technology. Ideal for recurring comparative measurements.

The Testo Smart App is free to download for Android and iOS. Providing a great user experience, the app has a clear graphical presentation of readings and simple, fast menus. The measurement menus for numerous applications provide optimum support in configuring and carrying out the measurement. You can also create digital measurement reports including photos as PDF/CSV files on-site which can be sent via e-mail.

Testo 535 Key Features

• Simple, fast and precise measurement of CO₂ concentration
• Audible alarm sounds if a limit value is exceeded
• Fast in-app configuration, graph history, second screen and measurement data memory in the Testo Smart App
• High reproducibility of measurement results due to long-term stable infrared sensor technology
• Timed and point mean value calculation

Whats Included?

• Testo 535 CO₂ measuring instrument
• App connection
• Audible alarm
• Transport bag
• Calibration protocol
• 3 x AA batteries