Is now part of Rust Automation & Controls!
​Read more here.

(800) 772-0878
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Email s[email protected]

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Online Instrumentation for Process
​ and Pollution Monitoring & Control

​PRODUCT LINES

Click here for printable Line List

Click here for Gas Instruments

​Click here for Liquid Instruments

​We sell 100% compatible replacement sensors for use with Great Lakes analyzer-systems. 
- PH/ORP - Differential and conventional types
- Conductivity -Electrodeless and Contacting types