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question for users of Essentials EC meter

Surfer Joe

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My Essentials EC meter normally gives me an EC readout in the 1.6 to 2.3 range for my hydro nutes with a small symbol next to it (ms), and it calibrates fine to the 2.8 ms standard, but sometimes it gives me a reading of .19 for my nute solution (without the ms symbol showing) when I know it should be in the normal range of 1.6-2.0. The meter is new and has only been used for about 6 weeks.
It never gives a different abnormal reading and it will read other solutions correctly at the same time yet still revert to the odd readout for the mixed nute solution. Other times, it reads the same solution correctly.
Has anyone who uses an Essentials EC meter had a similar problem?
I can't find any information about this online and the manufacturer did not respond to my question.
Could adding pH down to the top-up water that I replace each day as the plant drinks be affecting the situation?
Thanks for any advice.
 

WeedHopper

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Wish i could help but i dont use one of those.
Hopefully someone will chime in.
 

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