which tds meter is everyone using?

[vickreyreef]

I need to buy one...not sure what to look for here..
thanks!!!

 

[Tehrab]

http://www.spectrapure.com/St_quality_p2.htm#in_dual

 

[Saltwater_Dog]

Get a small hand held! Ebay.

 

[NanoGurl]

I got the COM100. Works great!