Water tester device to check the water quality

We need water everyday, but what is the quality of the water we drink everyday?
With the water tester device we can know the quality very clear.
You can know the PH volue of the water by the water tester pen.
Also you can test the ORP of the water too, help you check water quality.


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reprinted: http://homehealthywater.com/health-care-knowledge/1787.html