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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.

 

Email: info@hmdigital.com

 

Fax: 1-310-410-3106

 

 

 

 

 

 

 


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

FAQs

Common pH meter questions

Education Center

TDS Info Page


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