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Check your TDS meters for calibration screw.

J and S

Active member
Messages
592
Location
Batley
i bought a new one 6 weeks or so ago and it has been a bit hit and miss then I check the back today and there is no calibration screw so fake/faulty.

 
Ebay is full of fakes as is the biggest money laundry site in the world. Loads of fake meters that look like the HM Digital meter.

If it does not have HM Digital printed on it then will more than likely be a fake.

Amazon are pulling these adds off but Ebay refuse, corruption all the way.

 
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