HM Digital, Inc.
2629 Manhattan Beach Blvd,
Redondo Beach, CA 90278 U.S.A

Get in touch with us

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


Skype: hmdigital


TECH SUPPORT: If calling for technical support, please make sure you know the model number and have the product with you. Thank you!


Click here to read our complete warranty.


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


Common pH meter questions

Education Center

TDS Info Page

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