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.
Preserved SheeP Heart with Pericardium, Preservative: Formalin, With Pericardium, High quality Preservation, Mammalian organ dissection, teaching sPecimens to learn about the mammalian heart and cardiac anatomy, students about their own circulatory system