About MSS Automation

MSS Automation supplies industrial automation parts and electronic test equipment from San Marcos, California. We help maintenance teams, manufacturers, utilities and field-service businesses locate replacement and hard-to-find equipment.

Equipment for maintenance and replacement

Our catalog includes PLCs, I/O modules, drives, HMIs, circuit breakers, industrial sensors and test instruments. Browse our industrial parts and equipment catalog to compare exact model numbers and request pricing.

How we supply equipment

We offer equipment from our inventory and through sourcing partners, including surplus and discontinued models. Condition, testing information, accessories, availability and delivery timing are confirmed for the particular item in your quote.

Learn about our equipment sourcing process, or request a quote with the manufacturer, full part number and quantity you need.

Contact MSS Automation

1320 Grand Ave, Suite 7
San Marcos, CA 92078
United States

Phone: (442) 515-3644
Email: mssautomation1@gmail.com

Business hours: Monday–Friday, 9 AM–5 PM Pacific Time. Closed Saturday and Sunday.