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PH meter

RigglePLC

LawnSite Fanatic
Location
Grand Rapids MI
I have had 3 for which I paid under $20 each. J&M Instruments, Ferry Morse and some other brand. Fine for an approximate reading, if you follow directions. Don't expect a lot of accuracy. See older posts. As I recall I calibrated with diet Coke--pH 4.2.
 
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