Simple Atwood Machine, include Apparatus and 2 pulleys connected by a rod, 1.75inch plastic pulleys connected to a 3inch rod, Overall length is 8.25inch, Two pulleys are connected by a metal rod.
Automatically sets itself. Accuracy: 1/10,000 of a second. Controlling radio signal from NIST automatically adjusts clock for daylight savings time, leap year, and leap seconds. Highly visible bright second sweep hand. With NIST Traceable*. 30.5dia.x3.8Dcm.
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