Hand held TDS meter options

[Binare]

Walmart in the rv isle, costs 10 or 15 bucks if memory serves me correctly.

[Myka]

Originally Posted by Binare

Walmart in the rv isle, costs 10 or 15 bucks if memory serves me correctly.

How is it calibrated?

[sitandwatch]

The Walmart one does not have a calibration, turn it on stick it in the water and you get a reading.

[Myka]

Originally Posted by sitandwatch

The Walmart one does not have a calibration, turn it on stick it in the water and you get a reading.

Hmmm...I don't like that idea.

[Binare]

You hold the button till it reads zero, then put it in your water. Not entirely sure why calibration is necessary on some these. Out of liquid it should always read 0. The walmart one works good enough for our needs, filter replacement.

[Myka]

Originally Posted by Binare

You hold the button till it reads zero, then put it in your water. Not entirely sure why calibration is necessary on some these. Out of liquid it should always read 0. The walmart one works good enough for our needs, filter replacement.

Mine has read 15 ppm off when I have calibrated it. It always says 0 out of liquid. I want to change my filters when I get 1 ppm tds, not 15 ppm! Mostly I'm just sick of my particular TDS meter, and I'm looking for something different, but no I don't want to spend $80 on a tds meter! Just looking at other options.

[muck]

I have a Hanna Primo I will be posting Mindy.
Bought in 2007, used a couple times. Never did open the cal fluid pouch.
Pretty much mint condition, cept the batteries are dead. I'll check and see if I have some spare batteries kicking around tonight.