This Apollo bio-harness was worn by astronaut David Scott during his Apollo 9 mission in March 1969.
The Apollo Bio-Harness Assembly was worn under either the intra-vehicular or extra-vehicular pressure suit. It consisted of a cotton duck belt with teflon-coated beta cloth pockets into which the electrocardiograph signal conditioner, the impedance pneumograph signal conditioner and a DC-DC converter were inserted. These instruments monitored the physiological functions of the astronaut. The belt was fitted with snap fastners which attached the assembly to either the constant wear garment or the liquid cooling garment.
Transferred from NASA to the Museum in 1985.