Early commercial audiometers cost about $25,000 in modern currency, driving a portable redesign.

Evidence

Fletcher and Wegel’s audiometer, on the other hand, was a commercial audiometer and sold for roughly 1500, which would be about 25,000 in modern currency. Because of the steep price tag and the inability of portability, Fletcher and Wegel developed the first commercial and portable audiometer, the Western Electric Model 2-A, soon afterward. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 88