Wasco Switches and Sensors

60 years in business
10-49 employees

Wasco specializes in Ultra High Purity Pressure Switch design, engineering, and manufacturing. Offering customizable switches, transducers, ​and gauges. Quick turnaround. ISO Certified.

We design and manufacture our sensors for ultra high purity and highly corrosive environments found in next-generation semiconductor processing equipment. Rated for millions of cycles, our sensors have materials available that meet or exceed SEMI F20 (UHP) with a critical pitting temperature performance of > 35ºC. All switches, transducers, and gauges are helium leak tested to ≤ 1 x 10^(-9) std cc/sec Helium (per SEMI F1). 5Ra internal surface finish. Multiple fittings, connections, and customizable options are available.

Since 1987, Wasco has been supplying the semiconductor market with Ultra High Purity (UHP) sensing solutions. Our customers use our UHP products in wafer fabrication equipment (gas boxes, gas sticks, chamber pressure) and facilities equipment (gas cabinets, gas panels). Wasco is ISO 9001:2015 certified, and our products are both UL recognized and CE compliant. Together, our team has over 100 years of combined experience in providing sensing solutions to the semiconductor market.

After reviewing the form, please feel free to contact us through the contact form on the bottom of this page. If you complete and submit the Product Application Worksheet we will contact you via email soon. We're happy to assist you in selecting the proper switch series for your application. The following are a few basic requirements for selecting the proper pressure or vacuum switch:

Wasco’s ultra high purity pressure gauge series are designed for applications that require sensing of a corrosive media in demanding market applications. These gauges are designed to sense gaseous or liquid media without introducing contamination.

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2245 A St
Santa Maria, CA 93455



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