TDS meter

[jmaquatic]

Hi MR friends i was looking for used TDS meter for sale in north NJ i just picked up a new ro unit and the TDS meter on it is reading 000.00 TDS in and 000.00 TDS out? so i don't trust the one that came with the unit looking to pick up a hand held to verify what it really is thanks

Jonathan

 

[skene]

Here