Product review (1 stars): Not good!
Very disappointed!  Both pH 6.86 buffer packets were empty, and the meter will not calibrate with the other included buffers.  I only get an "error" message.  I do not feel confident enough to assume the meter is in any way accurate without calibrating it first.  So now I need to purchase calibration fluid, if not another meter, which will end up costing me more than the money I have wasted on this meter.  As a home cosmetics formulator on a budget, this does not make me happy!

I also want to add that I just tested it with regular distilled water....it measured that a 2.01!?!  I am not sure why this meter is so wildly inaccurate.  Perhaps my meter was dropped or damaged before it arrived.  Whatever the case, I will be returning it and will not purchase from this company again.