Which EC/TDS buy?

[Drlovekek]

Hi, im doubting between buying one of these two pocket tester,
the difference between the two is the type of measurement, one is in ms/cm - ppt and the other in us/cm - ppm.
Which one would u buy?

https://www.adwainstruments.com/poc...-ec-tds-temp-pocket-testers-low-range/84-ad31

https://www.adwainstruments.com/poc...ec-tds-temp-pocket-testers-high-range/85-ad32

 

[Drlovekek]

ADWA AD31 -
http://www.adwainstruments.com/pock...-ec-tds-temp-pocket-testers-low-range/84-ad31

ADWA AD32 -
http://www.adwainstruments.com/pock...ec-tds-temp-pocket-testers-high-range/85-ad32

 

[wh1p3dm34t]

ad32 bit mre precise, but you will be fine with stats milliSiemens, you don't need accuracy like that microsiemens, 2.2 mS --> 2200 uS