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Testador de qualidade do ar PM2.5 O₃ Ozono TVOC instrumento USB Tela LCD de 2,8 polegadas para dióxido de carbono formaldeído poeira névoa 109,78€ View It

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Eric 10/12/2021

The device is good, and gives more reliable data than some of the other cheaper devices. The software user-interface (as always) is clunky and has spelling mistakes, but the functionality is good. There is an included alarm for Ozone(O3). I wish there were alarms for the other measurements also. History can be viewed from within the device, and it's limited to 10 samples of 10 minutes (100 minute total history). It's difficult to view the history graphs because of the y-scales. There is a calibration feature, but the explanation is not very clear. The USB cable provided was defective. Overall, good device, bad software.

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