History and milestones

Radiometer has been providing innovative solutions since 1935

In 1935, the two engineers, Børge Aagaard Nielsen and Carl Schrøder, founded the company, Radiometer, to develop measuring devices for the growing Danish radio industry.

A few years later, Radiometer was contacted by the Carlsberg laboratories and asked to develop an analytical device for the detection of the acid-base (pH) level in liquids. This soon resulted in the first commercially available pH meter. 

In 1952, as the polio epidemic swept across Europe, many children were at risk of respiratory failure. The head of laboratory, professor Poul Astrup, and anesthesiologist Bjørn Ibsen discovered the right diagnosis by measuring the pH value in blood using Radiometer’s pH meters.

This ground-breaking discovery soon formed the basis for Radiometer’s entry into medical technology and further innovations within acute care testing. 

Radiometer remains committed to being a leader in acute care testing technology.

Radiometer AstrupABL1TCM400ABL500ABL800 FLEXABL90 FLEX 


  Astrup - Invention of the first commercially available blood gas analyzer
1973   ABL1 - World’s first automated blood gas analyzer
1989   ABL500 - World’s first combined blood gas and CO-oximeter analyzer
1998   ABL700 - World’s first blood gas analyzer with bilirubin and automated quality control
1999   RADIANCE - STAT data and analyzer management system
2001   TCM400 - First multichannel transcutaneous oxygen monitoring system
2004   NPT7 - Cassette-based analyzer based on breakthrough dry optical technology
2004   ABL800 FLEX analyzer - Automated benchtop blood gas analyzer with superior analytical performance
2005   1st Automatic - World’s first automatic blood gas system, simplifying the process from test order to reported results
2009   ABL90 FLEX analyzer - Next-generation cassette-based analyzer with 17 parameters in 35 seconds



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