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    2020-05-02 08:53:17

    Really nice product. Build quality is very good, works as advertised. Need to use the instructions to connect to a Windows 7 PC: 1) Download the software PM2.5 from the link in the listing 2) Download the USB-Serial Driver CH340 https://www.driverscape.com/download/usb-serial-ch340 3) Connect the monitor to a USB port 4) START > Device Manager 5) You will see an "unknown USB device" with a question mark under USB devices 6) Click > Update Driver - browse to the downloaded file 7) Check

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    2020-02-08 12:44:44

    Działa. Nie mam możliwości porównania z innym czujnikiem, więc nie wiem czy wskazania są prawidłowe (ale wyglądają na sensowne). Parametry zmieniają się - inne wewnątrz budynku inne na zewnątrz. Porownujac wyposażenie ze zdjęciami z opinii, ten z transmisją danych ma jeden moduł więcej (Chyba zegar RTC z baterią?) Nie sprawdzałem jeszcze komunikacji z PC.

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    2020-02-16 01:55:13

    Japan Direct Mail にて Shipped Jan/01/2020 -> Order Completed Jan/07/2020 1週間で届きました。 パソコンとの通信タイプを購入、測定値をパソコン上で確認でき便利です。CSVファイルにデータを 取り込むこともできます。 Windows7環境で使用通信設定は、コントロールパネル->デバイスマネージャ->シリアルポートの設定 ビット/秒=115200、PM25.EXE側設定115200 に合わせることで通信ができるようになりました。 本体の時刻合わせはSetting

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    2020-02-06 11:03:59

    I would love to but I can't give a perfect grade. The device itself works basically well, I have no objections. I purchased the hardware version with the option of sending data to a computer. Here is the problem !!!! I set up the device with a computer without a problem, however, the program collecting data P.M. 2.5 misinterprets the temperature data (it constantly shows and records zero Celsius to the file and incorrectly records the system time from the device to the file. This causes very big problems

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    2020-01-20 14:20:55

    Works as advertised. To connect to windows 10 running computer. Download file in description section link. Unpack. Connect Monitor to any USB2 port. In WIN10 R click START > Device Manager. You will see a question marked device R click > Update Driver from internet. It will install USB SERIAL CH340 (COM#) . R click properties > port settings > bits per second to 115200 > OK. Then startup the PM2.5.EXE from the download and set the COM# to your # assigned in device manager and the

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    2020-05-11 21:43:09

    Very fast delivery to Vietnam ;) This device works without problem. Nice screen. But I don't know how to change date and time.

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    2020-06-08 05:11:45

    i am pleasantly surprise. Looks really good.

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    2020-07-29 14:09:19

    Nice display . The functions without computer seems to work very well. The software is working for downloading data, but it need some trial and error. The questions and answers on the banggood website are needed to get started. The bautrate was not metioned in the paper delivered with the product, nor in the description on product information The belgian computer settings like " , "as decimal point make some parts of software nog useable. Example: temperature reading is in realtime reading

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    2020-06-07 04:12:57

    the product arrived with a certain delay with respect to the foreseen date, but it is acceptable since it was not guaranteed. the product il well built work properly and has a good display. it was not straightforward to transfer data to the pc (Chinese written software), at the end I did it, but unfortunately I could only transfer the PM1, PM2.5 and PM10 data, while I could not transfer the concentration data (that was what I was interested in). that is where my 4 stars come from.

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    2020-05-21 11:55:23

    Product is as decribed, seems works very fine. I have done some test indoor and outdoor, living near industrial site, and results is inline with official data from local autorized company for air quality monitoring (+/- 5%). Display is nice and clear in both mode, just in outdoor,with the sun, is not so visible. I connect with pc (Windows 10) without problem, it find device and adjust parameters itself (port COMxx and data speed), at today for me is not possible update driver but for now,i don't need

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