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right product By Awais on 4/18/13
Awais would recommend this product to a friend
It does exactly what its supposed to do.
Buy the sachet like these, one time use. After opening them, do not store them as they will loose the exactness.
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Easy to use By Bernardo on 2/16/11
Bernardo would recommend this product to a friend
Just tear off the top off the packet and stick in the ph probe for calibration.
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Good product By Bernardo on 2/16/11
Bernardo would recommend this product to a friend
Used it for a two point calibration. Easy to use. Just tear off the top of the packet and stick your probe in for the calibration.
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Easy to use By Greg on 1/16/11
Greg would recommend this product to a friend
Great easy to use pouch. Just make sure you grab some ph 4 or 10 so you can do a 2 point calibration. (assuming your controller will do 2 point calibrations.)