Antique chronometer appears to by C.H. Stoelting pre 1930 with tambour needle, 2 gauges in 10 increments with case.

Named after the French physiologist Charles Jacquet, this device allows researchers to precisely record the timing of cognitive or motor responses by participants. It typically consists of adjustable components for presenting stimuli and recording responses, along with a graphical output mechanism to visualize reaction times. Researchers use Jacquet's Graphic Chronometer to study various aspects of human cognition, such as attention, perception, and decision-making.

Measures 7 1/2" x 3 1/8" x 3".

vintage medical, vintage psychology, vintage science

Some signs of wear and use consistent with age.

In house domestic shipping $20.