Re: TDS tester (for PPM)

Save yourself the headache and stop looking, cos there aren't any.

Get whichever one you want, price doesn't enter into it, they are all the same i.e. NOT calibrated for silver. Don't forget to double the reading though, that's accurate enough for home use.

EC meters a more expensive, just read the meter as is to give you a 'ball park ppm'.

Meters only get you in the ball park, they won't take you to any specific place *in* that park, for that you'll need a laboratory equipped with suitable analytical instruments and procedures.

What meter would I recommend? Your choice, every player wins a prize. If you're a home producer it's not about 'accuracy', it's about efficacy.