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====[http://www.hach.com/pocket-pro-ph-tester-with-replaceable-sensor/product?id=17990686211 Hach Pocket Pro+ pH Tester with Replaceable Sensor].====
[[File:Pocket_pro.jpg|thumb|Hach Pocket Pro+]]
''Features'':
* This pH meter is recommended by AJ Delange <ref name="ajdelange"></ref><ref>[http://www.homebrewtalk.com/showpost.php?p=5711057&postcount=33 Testing the Hach Pocket Pro+ by AJ Delange Homebrewtalk. Retrieved 04/18/2015.]</ref>.
====[http://www.milwaukeetesters.com/MW102.html Milwaukee MW102 pH/Temp Meter (formerly SM101 and MW101)].====
[[File:MW102.jpg|thumb|Milwaukee MW102]]
''Features'':
* This pH meter is recommended by Kai Troester (SM101 originally) <ref name="troester">[http://braukaiser.com/wiki/index.php?title=PH_Meter_Buying_Guide Kai Troester. Braukeiser. Updated 09/23/2009. Retrieved 04/18/2015.]</ref>.
* 2 Buffer calibration.
* ATC.
* Stability <ref>[http://www.homebrewtalk.com/showpost.php?p=6282688&postcount=2 Comment by AJ Delange on Homebrewtalk. Posted 08/01/2014. Retrieved 04/18/2015.]</ref>.
''Disadvantages'':
==Buffer Solution==
Buffer solution will be required to calibrate a pH meter. In general, it is recommended that a pH meter have a 2 point calibration method, which requires 4.0 buffer solution and 7.0 buffer solution. Many buffer solutions for pH meter calibration can be found on [http://www.amazon.com/s/?ie=UTF8&keywords=ph+meter+calibration+solution&tag=googhydr-20&index=aps&hvadid=33870947755&hvpos=1t2&hvexid=&hvnetw=g&hvrand=2358411058820273529&hvpone=&hvptwo=&hvqmt=b&hvdev=c&ref=pd_sl_9h5a0pkyc9_b Amazon] or other retailers.
==External Articles==