good product for healthy environment...

good product for healthy environment...

good product for healthy environment...

Funktioniert gut, Akkulaufzeit scheint anfänglich nicht sehr berühmt, aber mal sehen, wie es nach mehrmaligem Laden ist, CO2 Anzeige muss man glauben, so man keinen Vergleich hat, Temperatur und Luftfeuchtigkeit sind ziemlich genau

Funktioniert gut, Akkulaufzeit scheint anfänglich nicht sehr berühmt, aber mal sehen, wie es nach mehrmaligem Laden ist, CO2 Anzeige muss man glauben, so man keinen Vergleich hat, Temperatur und Luftfeuchtigkeit sind ziemlich genau

Funktioniert gut, Akkulaufzeit scheint anfänglich nicht sehr berühmt, aber mal sehen, wie es nach mehrmaligem Laden ist, CO2 Anzeige muss man glauben, so man keinen Vergleich hat, Temperatur und Luftfeuchtigkeit sind ziemlich genau

product seems good

product seems good

product seems good

Хороший прибор, пришёл вовремя

Хороший прибор, пришёл вовремя

Хороший прибор, пришёл вовремя

a nice tidy unit. seems to work ok

a nice tidy unit. seems to work ok

a nice tidy unit. seems to work ok

All right, thanks.

All right, thanks.

All right, thanks.

Seems to work as expected. A neat & tidy unit with a bright clear display. The description above is misleading though, the accuracy in the documentation is listed as +/- 50 ppm +/- 5%. A device for the claimed 1ppm accuracy might perhaps start at 100x the cost and need reference calibration. There are published sources for recent atmospheric CO2 levels to compare with if you can get this into a space with clean fresh uncontaminated air, such as https://www.csiro.au/en/research/natural-environment/atmosphere/latest-greenhouse-gas-data/ I've found that you need to be reasonably far away from it to not have your breath affecting it so it does seem to do a reasonable job of CO2 reporting - for a cheap device anyhow. For noting if there's a problem with indoor air currently, this will be useful. Arrived in 4 weeks which is about normal currently.

Seems to work as expected. A neat & tidy unit with a bright clear display. The description above is misleading though, the accuracy in the documentation is listed as +/- 50 ppm +/- 5%. A device for the claimed 1ppm accuracy might perhaps start at 100x the cost and need reference calibration. There are published sources for recent atmospheric CO2 levels to compare with if you can get this into a space with clean fresh uncontaminated air, such as https://www.csiro.au/en/research/natural-environment/atmosphere/latest-greenhouse-gas-data/ I've found that you need to be reasonably far away from it to not have your breath affecting it so it does seem to do a reasonable job of CO2 reporting - for a cheap device anyhow. For noting if there's a problem with indoor air currently, this will be useful. Arrived in 4 weeks which is about normal currently.

Seems to work as expected. A neat & tidy unit with a bright clear display. The description above is misleading though, the accuracy in the documentation is listed as +/- 50 ppm +/- 5%. A device for the claimed 1ppm accuracy might perhaps start at 100x the cost and need reference calibration. There are published sources for recent atmospheric CO2 levels to compare with if you can get this into a space with clean fresh uncontaminated air, such as https://www.csiro.au/en/research/natural-environment/atmosphere/latest-greenhouse-gas-data/ I've found that you need to be reasonably far away from it to not have your breath affecting it so it does seem to do a reasonable job of CO2 reporting - for a cheap device anyhow. For noting if there's a problem with indoor air currently, this will be useful. Arrived in 4 weeks which is about normal currently.