The Primate Life Support System includes the urine transport system, restraint system, food pellet dispenser, water dispenser, feces collector, light assembly, camera, and environmental life support, camera and lighting controllers. Capsule air is controlled at sea level pressure with partial oxygen pressure at nominally 20% of the gas mixture. CO₂ is removed by lithium hydrogen canisters, and other trace gases are controlled by activated charcoal.

Urine Transport System*: The urine transport system consists of a catheter designed for thirty-day use and a transport system.

Urine Analyzer*: The urine analyzer receives samples from the Urine Transport System.

Restraint Couch System*: The restraint system consists of a couch and restraint garment.

Pellet Feeder Dispenser*: The feeder can operate automatically or in conjunction with the Primate Psychomotor Test System.

Light Assembly: The light assembly consists of a primary and backup incandescent bulb which provide a 12/12 hour day/night cycle and a 30/1 day/night ratio of intensity. A light sensor is included in the capsule instrumentation for verification of the light condition in interpreting physiological observations.

Water Dispenser: The water dispenser is designed to allow sucking of water during orbital flight. The 30 ml dispenser is filled once each hour in the capsule day mode, and once every three hours during the night mode. Ground command capability provides for immediate refill of the dispenser at any time, and for a maximum water mode in which the dispenser is filled every hour during the night and day cycles. The dispenser contains a secondary solenoid valve to pre- vent unmeasured flow should the primate consume water as it is being filled. A fuel cell fed by hydrogen and oxygen produces water and power for the satellite while in orbit.

Feces Collector: To collect fecal material in flight, cabin air is drawn through a foam lining to effect distribution at its bottom. Air is drawn into the collector through holes close to the anus to provide a kind of pneumatic transfer. The tube is attached to the animal by means of a belly band restraint with a large external ring that interfaces the animal to the collector. The collector is mounted to the couch frame.

Camera: The camera is used to record still photographs every twenty minutes throughout the flight, and as controlled by the psychomotor test system. It can operate up to four frames per second. A prism is used to permit photography of the animal's eyes and head. A unique auxiliary lens over a portion of the entrance pupil of the camera's objective focuses the clock image onto a portion of each picture.

Environmental Life Support, Camera and Lighting Controllers: Life support, camera and lighting controllers are incorporated into the life support system to program its various components in response to clock signals, to the psychomotor programmer, and to ground commands.

Dimensions: Unknown

Weight: Unknown

Power: Unknown

Temperature: 20.75 to 21.5 °C

Light Intensity: 6 lux (daylight)

Water Dispenser Capacity: 30 ml/hour (max)

Photographic documentation, environmental data

Water Supply Unit: To fill primate water dispenser and receive metabolic wastes during testing.