About This

• SAFETY; The testo 535 air quality monitor indoor offers fast and precise measurements of carbon dioxide concentration which is important to ensure the right air quality
• PRECISION; Thanks to the CO2 meter’s long-term stable infrared sensor technology, measured values are not only extremely accurate but also reproducible and comparable over longer periods of time
• CONVENIENT; The carbon dioxide detector supports time and point averaging directly from the instrument, therefore offering dependable and comprehensive measurement values at one glance
• ALARM; The indoor air quality monitor is equipped with audible alarm sounds that reliably let the user know if a limit value is exceeded.
• APP CONNECTION; Conveniently display graph history, and view, store, and document all measured values directly from your indoor air quality meters on your Smartphone and Tablet, or use them as a second display