I have the meter pictured in this link ( http://www.htgsupply.com/viewproduct.asp?productID=53779 ) for my E&F garden. I bought the meter as a continious read meter to place in my reservoir and leave. HOWEVER....when I place the probes in the reservoir, the pH reads 0.00. The TDS and EC read properly, as does the temp,but pH flashes 0.00. If I take a sample of the res in a seperate container, I can test the pH of it just fine,and it is usually 5.8. Then, put the probes in the res,and pH 0.00. Any idea why this is happening?? Thanks for the quick reply and any help. ppm
You ever figure out an answer to the 0.00 reading. oddly enough mine reads 5.8 in a test sample. It also seems to read fine in tap water and RO water. Going to go get more cal solution and see if that helps. Thanks for any info.