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#3
06-09-2010, 05:23 AM
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To have alkalinity electronically testable in a hobbyist affordable handheld is a very interesting development, so I must say it's worth of a raised eyebrow. However I wonder how robust it will be. Take for example the probe based nitrate testers .. very fussy and finicky, the probes don't last long and they're brutally expensive to replace - compared to test kits anyhow.
The colorimeters are a little better for robustness but have their own issues. However for a colour comparison based test, a colorimeter certainly takes guesswork out of comparing hues and intensities in potentially variable lighting conditions. Nevertheless, an interesting development and one worthy of watching out for!!
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee! 
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