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4.9 out of 5
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    very good CO2 sensor for a good price

    2019-01-09 09:05:56

    An excellent CO2 sensor for a low price In conjunction with an Arduino board one can realize a fine data logger

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    Excellent CO2 sensor that directly measures CO2 level

    2018-10-10 02:36:21

    I've bought more of these sensors by now, it's excellent. What makes this sensor excellent that it measures directly the CO2 level unlike the ones that guess it based on air quality (cheaper ones _guess_ CO2 level based on various particle levels). So if you want a good sensor go for this or other NDIR variants and don't settle for cheaper ones that don't directly measure CO2 level.

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    2019-06-17 02:15:18

    5 v power, 3,3 v TTL UART, PWM, DAC easy to use with ESP8266/ESP32 can be connected directly to PC (via USB-UART) high accuracy

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    2019-06-04 17:30:28

    Good price. Work ok. Happy with my order.

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    2019-05-28 16:57:31

    Perfect!

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    2019-03-21 12:09:11

    wszystko zgodnie z opisem

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    2019-01-29 07:25:35

    ok

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    GREAT product

    2018-12-31 01:22:36

    works accurately

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