Auto calibrating PPM meter?

Earlyriser76 said:

I'm looking for a meter that I don;t have to re-calibrate all the time to test my water quailty.
Is there one out there that is cheap?

Thanks!

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Sithlord88 said:

Keep in mind this one does NOT measure ph. Just ppm, ec, and temp? I think. I rarely use it

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Sithlord88 said:

Amazon- 10 bucks if I remember correctly. Also supposedly auto calibrating. Backlight turns red if its "hard" water (i don' think 90's is hard)

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Flagg420 said:

I used cheapy $10 pens for ages....

Eventually, if you want reliable readings and products built to last... youll buy some bluelab gear... I now have the pair of pens, and 2 guardians...

Still calibrate once a month, just in case... its a good habit to have...

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