Analytical Sensors & Instruments, Ltd. (ASI)

Analytical Sensors & Instruments, Ltd. (ASI)

Analytical Sensors & Instruments Ltd. provides innovative, high quality electrochemical sensors to users and OEM customers worldwide. The ASI team can provide you with unlimited designs for measurement in a wide variety of applications including medical, environmental monitoring, process monitoring and control, education, recreational water purity monitoring and others. For users, ASI stocks a variety of popular models of pH, conductivity, dissolved oxygen and ion selective electrodes. In addition, ASI engineers and sales professionals can design custom solutions to satisfy even the most complex and challenging projects.

Company details

12800 Park One Drive , Sugar Land , Texas 77478 USA
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Business Type:
Industry Type:
Monitoring and Testing
Market Focus:
Globally (various continents)
Year Founded:

ASI owes its humble beginning to its founders, Peter and Yuxian Cai. In 1989 Peter and Yuxian started ASI in the garage of their own house. Prior to the founding of ASI, Peter and Yuxian each had already spent 25 years working for electrode manufacturing companies, learning and contributing to the progression of this industry.

In 1989, ASI only had two employees working in a converted home garage. Today ASI employs over 200 employees worldwide with offices in Texas, Colorado, and Shanghai, China with a total manufacturing space of over 45,000 square feet. Through our vertically integrated manufacturing operations in the USA and China, ASI differentiates itself as an innovative, high quality, low cost manufacturer with strong global reach. Additionally, to complement our full suite of manufacturing capabilities, ASI offers a depth services to support our customers’ entire product lifecycle. ASI has two engineering groups and a fully functioned R&D lab dedicated to supporting our global customers through initial conceptualization and design, detailed mechanical and 3D drawings, prototype development, testing, troubleshooting, and continuous improvement initiatives. Furthermore, to meet our customer needs, our plastic molding shop in Shanghai has the full capability of custom mold design and manufacturing, as well as plastic injection molding for high quality but small volume plastic parts.

We would like to thank all our customers for their years of loyalty and we look forward to many more years of providing them with great customer service, quality, and affordable products as well as worldwide engineering and manufacturing services.

We welcome you to browse our product offering by application or measurement parameter, click to learn more about our custom OEM designR&D, Engineering, and tooling and molding services, and contact us today to discuss how we can support you.