Review on 💧 Digital Water Quality Tester with Calibration Kit - LiZi pH Meter by Wiktor Pozna ᠌

Name: 💧 Digital Water Quality Tester with Calibration Kit - LiZi pH Meter
Item: 💧 Digital Water Quality Tester with Calibration Kit - LiZi pH Meter
Rating: 2

April 21, 2023

Dissatisfied with this product, bad to use.

I did it according to the instructions: I took 250 ml of distilled water with a temperature of 26 degrees, diluted the bag with ph 4.01. The device showed 3.5. I tried to turn the screw - the values ​​\u200b\u200bdid not change.
I did a similar operation with the second solution (ph 6.86) - the result is 6.0
Well, how to use this tester then?
By the way, turning the screw is a separate art: it is easier to remove the upper black part with batteries, so that at least you can see where to insert the screwdriver. Too bad it doesn't affect anything.

Pros

shows something Comes with two calibration bags

Cons

The calibration screw does not work - you have to keep the error in your head No package 92022

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