Need input on a TDS meter.

[rkb]

Once again I return to the well of knowledge- this time I am wanting to get a TDS or EC tester to tell when I need to change cartridges in my RO/DI unit. Marine Depot offers a inline TDS meter for 40 bucks, or should I look at the Hanna EC/TDS/temp for 95?

thanks in advance
R

 

[bertoni]

I have a COM100, and it seems to work well. The Hanna likely is okay, too, if it reads in the correct range. The inline meters are very handy, but likely less accurate. It's a matter of personal choice. Any of them likely will work well enough for all but tricky problems.

 

[Mike O'Brien]

When I researched them that model came up as the best for the price again and again. Plus one for the COM100.

 

[rkb]

Thanks all, a HM COM100 is on the way!

 

[bertoni]

You're welcome! Good luck!