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Extech was founded in 1971. In October 2007, FLIR Systems acquired Extech for $40 million. [1] [2] In December 2009, FLIR Systems sold Extech Data Systems, a division of Extech which made portable printers. [1] [3] In November 2011, the company relocated to Nashua, New Hampshire. [4]
Portable, or field pH meters, are handheld pH meters that are used to take the pH of a sample in a field or production site. [19] In-line or in situ pH meters, also called pH analyzers, are used to measure pH continuously in a process, and can stand-alone, or be connected to a higher level information system for process control. [20]
The Ames Reflectance Meter was the first blood glucose meter. It allowed patients with diabetes to self-monitor their blood glucose levels. The Ames Reflectance Meter was developed in 1970 by Anton H. Clemens. It had a needle that indicated the intensity of blue light reflected from a paper strip, called Dextrostix. The meter gave a ...