Product review (1 stars): Was off. 30 out of the box, calibration ...
Was off .30 out of the box, calibration is a nightmare, Dropped .50 points after 3 days of use while storing in PH 7 cal solution. Back to my trusty Etekcity.  Costs $20, I calibrate every week (takes 10 sec) even though it only runs off a about .03 points a week. I store in 7 cal solution and replace after 4 months. Was drawn in by reviews on this one. Have no clue how reviews ran so high.