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Global Sales & Marketing


Phone: 800-383-2777 or 1-310-410-3100


Address: 2629 Manhattan Beach Blvd.  Redondo Beach, CA 90278 U.S.A.




Fax: 1-310-410-3106








Many questions are already answered on our website. Please see:


Common pH meter questions

Education Center

TDS Info Page

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