Air Quality Monitor CO2 Detector Professional Carbon Dioxide PM2.5 PM10 Formaldehyde Temperature and Humidity Monitor w/Audio Alarm Data Export (M2000 2nd)

Perfect for reliable accurate measurements of in or outdoor air quality. Necessary in an age of wildfire smoke and other pollution. Paired it with a HEPA air filter. Measures VOC's, CO2, and PM 10's and PM 2.5"s. C02 great for small rooms full of people, feel drowsy, high CO2 is likely why. This unit displayed the drop in PM particulates in real time as the HEPA filter ran. It also warned of awful wildfire smoke that was bare apparent without the unit. On a commercial aircraft unit displayed CO2 level of 2500, a level violating OSHA and worse, fully capable of making pilots drowsy and slowing their reaction times.

Pour l'instant, il fonctionne très bien et semble donner des résultats proches de la réalité lorsque je compare la pollution avec le site météo. En tout cas à ce qui a trait avec les fines particules. Il est très sensible, il y a une rôtie qui a brulé légèrement et j'ai obtenu plusieurs alarmes, CO2, fines et plus grosses particules étaient rendues très élevées. Aussi, excellente communication avec le vendeur.

Es justo lo que necesitaba, obtengo mediciones de CO2 en el laboratorio. El equipo crea un Excel diario y registra los valores cada 30 minutos, se conecta a la computadora y se extraen los archivos.

Good for diagnosing dust levels coming from outdoor sources, and from in house activities like sanding or cooking or running a poorly filtered vacuum cleaner or shop vac. It also easily gives a good asses ent of the function of filter fans or even a face mask with a little cleverness (I am a retired scientist with some background in dust measurements). The formaldehyde sensor is also very sensitive to other oxygen containing molecules, especially alcohols. It does an excellent job of discovering someone drinking wine in the house (or as a too sensitive Breathalyzer). Fun. And is thus also a good way to measure how long it takes for the air in your house takes to be replaced with outside air. The co2 sensor is fun. It nicely detects breathing people. I suspect it might indicate that a small group of people was "unhealthy" based upon the higher CO2 levels. A plus feature for shy people. Serving useful purposes to me and provides fun demonstrations on natural phenomena. The interference of alcohols with formaldehyde detection makes most random indications of formaldehyde will actually be alcohols. But it should be as indicated sensitive to formaldehyde. Its literature should discuss this.

Me gustó que es robusto, y tiene una interfaz intuitiva. El sensor de CO2 al parecer si es NDIR. No me gustó que la 1ra calibración o la requerida después de mucho tiempo de no usarlo dura 6 horas. La batería no dura mucho, así que hay que dejarlo conectado a un power bank porque hay que calibrarlo en exteriores. Tampoco me gustó que no guarda algunas configuraciones al apagarse. Por ejemplo, la de silenciar la alarma. No trae cargador, solo el cable.