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PH/ORP/EC/TDS/Orville digital thermometer for water ML-51 Review

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Revainrating 3 out of 5  
Rating 
3.0
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Description of PH/ORP/EC/TDS/Orville digital thermometer for water ML-51

A device for determining the redox potential (ORP), pH level, electrical conductivity, temperature and degree of mineralization of water. Measurements are made by the submersible method using a special sensor. ORP is measured in the range from -1000 to +1000 mV; pH - in the range from 0 to 14; water mineralization level - from 0 to 19990ppm; electrical conductivity - in the range from 0.00 to 19900 uS. The automatic temperature compensation function operates in the range from 0 to 60 degrees. The measurement results are displayed on the built-in LCD display. The power source is three LR44 batteries or a 4.5V DC power adapter.

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Revainrating 3 out of 5

Not exactly the product I wanted, price and quality don't match.

Most likely, the PH sensor needs calibration or has been in storage for a long time. The instructions suggest changing the PH sensor once a year. Naturally, it cannot be found in the 2022. Pros: In beautiful packaging. Works. There is a set for making control solutions and calibration. Cons: 1) The thermometer works, accuracy + - 0.2 degrees 2) PH measurement is carried out with a deviation of up to 1.0, i. E. shows 72022, and drop tests PH 6.5. The PH value settles down after a few minutes…