The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter…

An ammeter is used to measure the electric current flowing through the circuit. This instrument is distinct from those which measure voltage, like a voltmeter.

The industrial model pH meters had features designed specifically for industrial (as opposed to laboratory) environments, like the Model W's rubber gaskets to prevent corrosive gases or dust from entering the…

Used for performing titrations with a Karl Fischer reagent.

This accessory for Beckman's line of infrared spectrophotometers is designed to remove all moisture from the air passing through the spectrophotometer, which otherwise could interfere with its readings.

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…

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…

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…

A microtitrator is an instrument designed to titrate very small volumes of liquid. This model is shown with a Microfuge centrifuge and other accessories.

A traveling exhibit of Beckman Instruments' biomedical instruments products.

Four unidentified men flank a Beckman HC/CO tester. This instrument detects pollutants in the exhaust from vehicles with combustion engines.

Beckman Instruments, Inc. became interested in measuring, controlling, and…

Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced its first gas chromatograph, the GC-1,…

Radioimmunoassay is an assay technique used to measure concentrations of antigens by use of antibodies. This test often requires making antigens radioactive and is frequently used to measure hormones in blood.

This instrument includes an oxygen analyzer, but its end product and purpose is unclear.

Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…

Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…

Lineberger is the man on the right. The instrument they are examining is unidentified.

Unidentified men trading stock on the floor of the New York Stock Exchange.

An ultraviolet and visible light spectrophotometer.

EPUT (Events Per Unit Time) meters measure changes in voltage during a specified amount of time, and so can be used to count or measure any event that can be represented as a voltage change or pulse. This includes, but…

It is unclear from this photograph whether this is a Model 150 or 160.