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  • 04/08/2020

    thanks good quality and very fast delivery time and nice quality of packaging

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  • 06/04/2021

    It's different than the picture Pay the price Expensive He's actually good at the job The reason for dissatisfaction is just not the same as in the picture

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  • 18/10/2020

    very good

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  • 20/06/2020

    Works fine.

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  • 11/10/2018

    J'appuis sur le bouton on/off et un 1 apparais puis le ph mètre s'éteins aussitôt !!! Alors je décide de vérifier les piles qui sont plus qu'épuisées. Donc pour vérifier le bon fonctionnement du ph mètre et n'ayant pas de pile bouton 3 volts sous la main, il en faut 2, je bidouille 4 piles AAA de 1.5 volts en série et branche un ampèremètre en série au ph mètre, et surprise ça fonctionne pour consommation de 1.8 mA. Mes mesures: Vinaigre a 8% entre 2.7 a 3. Eau du robinet entre 5.8 a 6. Eau savonneuse entre 9.5 a 10. N'ayant pas de solution d'étalonnage, pour moi ce sont des mesures assez cohérente. Reste plus qu'a changer les piles.

    Comments
  • 01/01/2020

    Simple and efficient. Comes in a sturdy storage box, with instructions in English and even a screwdriver for adjustment. I did not apply the adjustment procedure because it requires calibration products that have to be obtained separately, small sample bags would have been very appreciable. On the other hand, if the adjustment procedure is done on three points (acid/neutral/alkaline), I find it difficult to understand how a single potentiometer can adjust 3 points on its own. In the open air, the display is very unstable, it calms down clearly once the probe is immersed in the liquid to be tested but still moves quite a bit (it seems that the setting up of temperature takes a little time), we understand the usefulness of the "hold" button. In fact, blocking the measurement thus distorts the reading but this instrument is obviously not a high precision device. On the other hand, it is a very good instant indicator of the state of a liquid. This allows me to know immediately if a treatment bath is still active or exhausted. It is important to rinse the probe well after use to avoid shortening the life of the device.

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  • 29/04/2016

    Bien reçu en 12 jours (France) bien emballé dans une boite plastique avec un tournevis de réglage... mais PAS RECU les 2 sachets PH4 et PH6 qui devaient l'accompagner.. pour étalonnage ! Donc je ne sais pas s'il est bien calibré..? Received in 12 days (France) well packed in a plastic box with a screwdriver adjustment ... but NOT RECEIVE 2 bags PH4 and PH6 who were to accompany .. for calibration! So I do not know if it is properly calibrated ..?

    Comments (1)
  • 12/06/2018

    The batteries were dead upon arrival. I replaced the batteries and the meter will only display a number 1. After 2 to 3 minutes of stirring in tap water, the meter still only displaying a number 1.

    Comments (1)
  • 05/08/2017

    I don't have a control PH meter to verify the reading of this device, but so far it has served me well in deciding the acidity of the solutions I am dealing with. Readings seem to be precise and the process of recovering precious metals is going just well.

    Comments
  • 13/05/2017

    Доставлено нормально. Спасибо. Проверил. Работает отлично, Спасибо. Доволен сотрудничеством с вашей компанией.

    Comments
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