Electrode Harness Assembly


Display Status:

This object is on display in the Moving Beyond Earth exhibition at the National Air and Space Museum in Washington, DC.

Collection Item Summary:

The Human Research Facility Holter Monitor (Holter) is a battery-powered, noninvasive electrocardiogram (ECG) device that accurately measures the heart rate of crewmembers over an extended period of time (up to 24 or 48 hours). ECG information is stored on a Portable Computer Memory Card International Adapter (PCMCIA) card and downlinked to Earth for analysis after monitoring is complete.

These electrode cables attached to the Hotler assembly. NASA transferred this device to the Museum in 2012.

Collection Item Long Description:

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Credit Line

Transferred from NASA


plastic, rubber, stainless steel, brass


3-D: 203.2 x 4.4 x 0.6cm (80 x 1 3/4 x 1/4 in.)

Country of Origin

United States of America



Inventory Number