I want an accurate pH meter/ pen so that I can carry out proper pH profiles.
I am looking at the Hanna ones and I have narrowed it down to these two:
http://shop.hannainst.com/hi98103-checker-ph-tester.html?id=040003&ProdCode=HI%2098103
http://shop.hannainst.com/hi98107-phep-ph-tester.html?id=033001&ProdCode=HI%2098107
The first one has a resolution of 0.01, but an accuracy of +/- 0.2. The second one has a resolution of 0.1, but an accuracy of +/- 0.1.
So, does this mean the second one will give me more reliable, but less precise readings? Does the fact that the first one has a separate probe mean that it will be less likely to become inaccurate over time?
Why is the second one more expensive?
Cheers.
I am looking at the Hanna ones and I have narrowed it down to these two:
http://shop.hannainst.com/hi98103-checker-ph-tester.html?id=040003&ProdCode=HI%2098103
http://shop.hannainst.com/hi98107-phep-ph-tester.html?id=033001&ProdCode=HI%2098107
The first one has a resolution of 0.01, but an accuracy of +/- 0.2. The second one has a resolution of 0.1, but an accuracy of +/- 0.1.
So, does this mean the second one will give me more reliable, but less precise readings? Does the fact that the first one has a separate probe mean that it will be less likely to become inaccurate over time?
Why is the second one more expensive?
Cheers.