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4.84 out of 5
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  • 24/09/2020

    Easy to use with UART. I combined mine with a TTGO T-Display to both display the current reading and record historical readings. Can be configured for 0-2000ppm, 0-5000ppm or 0-10000ppm range. Make sure to use version 1.5 of the datasheet - earlier versions lack some info.

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  • 18/11/2020

    ready to use ! I bought 2 parts for the 2nd time

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  • 14/12/2020

    But had to be calibrated first. In the beginning it was only house numbers, not serious measured values

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  • 28/11/2021

    everything went great

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  • 26/11/2021

    The Item works finde and was delivered quickly. Thanks

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  • 05/02/2021

    all ok

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  • 17/01/2021

    All ok, it is used at at co2 traffic light, to show air quality.

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  • 13/01/2021

    All good!

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  • 11/01/2021

    very good

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  • 31/12/2020

    The MH-Z19B CO2 sensor works as expected. Delivered within 12 days to Germany

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