Which TDS meter

dw1305

Expert
Joined
7 Apr 2008
Messages
9,756
Location
nr Bath
Hi all,
It will do, even cheap meters work quite well and will give you a ball-park figure, but I would agree with @jaypeecee, I'd spend a little bit more and get a low range meter (0 - 1999 microS) with calibration and temperature compensation.

cheers Darrel
 

jameson_uk

Member
Joined
10 Jun 2016
Messages
706
Location
Birmingham
I would go for
https://smile.amazon.co.uk/dp/B01FXRC354
(Assuming you actually get a HM TDS3).

I have had these and they work well and are accurate (and can be calibrated). I did assume they were generic Chinese rebrand items and bought another that looked identical but was a few £ cheaper. This was designed to look just like the TDS 3 but was basically a random number generator. I tried in in a reference 342 solution and got readings of 180, 250, 400.... The deionised water read anything from 50 to 150 (when it was 0).

Only problem with these was me.... They don't like getting wet beyond the sensor. I now have one of these (https://smile.amazon.co.uk/dp/B000VVVEUI) which isn't cheap but is very reliable and waterproof!
 
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