According to a note on the back, this is or is part of a "clean air kit."

A Solu bridge determines the dissolved solids in water by measuring its conductivity. This instrument records the output of a Solu bridge.

For use with pH meters.

The SpectraSpan VI was a rapid scanning high resolution plasma emission spectrometer, introduced circa 1983, for non-routine elemental analysis.

Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…

An accessory used with atomic absorption spectrophotometers.

The Atmosphere Analyzer (center) is shown with a Harold Kruger Instruments spectrophotomer (left) and a Texas Instruments Servo/riter output machine.

Hygrometers measure atmospheric water vapor.

The Model 72 was a line operated version of the Model 76 Expanded Scale pH Meter, designed for routine use.

Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus…

The Automatic Titrator's selling points included convenience, simplicity, ease of use, and a secondary application as a pH meter.

Instruments in a display at the Federation of American Societies for Experimental Biology (FASEB) trade show. This system consists of a Type S-II Dynograph Recorder and a BMSD cabinet that contains an oscilloscope and a…

The Beckman Accutrace was introduced in 1973. Electroencephalographs are used to monitor and record electrical activity of the brain.

The unit in the photograph includes a Beckman OM-11 oxygen meter, LB-2 gas analyzer, and R411 dynograph recorder.

This instrument was designed to be incorporated into electroencephalograph units and included an impedance meter. An electroencephalogram test detects electrical impulses in the brain via electrodes attached to the…

The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…

Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…

"GmbH" stands for Gesellschaft mit beschränkter Haftung, which denotes a company with limited liability in some German-speaking countries. The L.L.C. (limited liability company) is a close United States equivalent.

"GmbH" stands for Gesellschaft mit beschränkter Haftung, which denotes a company with limited liability in some German-speaking countries. The L.L.C. (limited liability company) is a United States equivalent.