Testo 535 Digital CO2 Detector – Air Quality Monitor for Precise Carbon Dioxide Measurements up to 10000ppm – CO2 Monitor with Audible Alarms – Air Quality Tester with App Compatibility

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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 Show more