Fluorometers, Gas Exchange and Light Measurement Equipment

Manufacturer of high precision membrane inlet mass spectrometers

Unrivaled speed and precision for dissolved gas measurements

Instruments in 14 countries

The Bay Instruments membrane inlet mass spectrometer (MIMS) is the de facto standard for denitrification studies which demand the highest precision for N2 and N2/Ar ratios. Our MIMS is the instrument of choice for government and academic researchers, oceanographers, and environmental scientists who require precise measurements of dissolved gases in water. Our applications have grown over the last 25+ years to encompass denitrification, ecosystem oxygen studies, trace environmental gases, and stable isotope studies. Our MIMS provides high precision, rapid analysis, and small sample size capabilities with a small footprint that makes it an excellent candidate for field applications.


MW/SE Photosynthesis Meeting
Turkey Run State Park, Marshall, IN
October 26-28, 2018

Western Photosynthesis Conference
Friday Harbor, Washington
January 3-6, 2019

Exetainer Sample Vials available in our store now

Offering the extensive line of Walz PAM fluorometers and gas exchange instruments

Known widely for their PAM fluorometers, Walz focuses on photosynthesis instrumentation. This is a natural addition to our expertise, building on 25 years of research and teaching PAM fluorometry, coupling with MIMS and the Walz PAM fluorometer in research. Look for new products capable of linking the MIMS and PAM in future.

25 years of experience with Pfeiffer Vacuum mass spectrometers and vacuum equipment

Bay Instruments provides equipment across their entire product line at discounted prices to end-users in business, university and government labs. Our experience and customer service gives the customer the advantage of knowing that the order will be the best fit for the requirements of any project.
Contact us for a quotation.