A25M (handheld) /A25D (benchtop) /A25F (benchtop) are air quality meters used to measure PM2.5 concentration. A25F can also measure formaldehyde concentration. PM2.5/Formaldehyde concentrations display diﬀerent emoticons on screen to help users visualize their environmental conditions.
UNI T Air Quality Meter A25D is a meter used to measure PM2.5 concentration. A-25D air pollution meter, PM2.5 concentrations are used to display different emoticons on-screen to help users visualize their environmental conditions. This best indoor air quality meter has a large 3.0 in LCD screen, clear digital readout. Operating button, easy to control. The A 25 D air pollution check meter can be used in homes, laboratories, offices, hotels, schools, factories, conference rooms, airports, hospitals, restaurants, and many other public places.
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