I'm considering the purchase of a pH tester. I've seen a couple of threads referring to Hanna Instruments. The website shows a HI98128 with pH accuracy of 2 decimal positions and the HI98127 with 1 decimal position of accuracy. Any input on which one I should get? Also what else do I need to get with it? There is a storage solution and a cleaning solution. Are they needed? I also read about buffer calibration. Is that also a solution, or is it an internal meter setting? Do any of these things come with the kit?
In other words-----What the heck do I need?
Thanks a lot!
In other words-----What the heck do I need?
Thanks a lot!