Final answer:
Cryotainers are equipped with a pressure gauge to measure gauge pressure and a temperature gauge to monitor internal temperatures, both of which are critical for maintaining safe and stable cryogenic storage conditions.
Step-by-step explanation:
The two gauges permanently installed on cryotainers are a pressure gauge and a temperature gauge. This can be answered by considering typical monitoring requirements for cryogenic storage vessels, which need to maintain their contents at extremely low temperatures and under certain pressure conditions. A pressure gauge is essential for reading the gauge pressure, which is the pressure relative to atmospheric pressure, ensuring that the internal pressure is within safe operating limits. A temperature gauge, on the other hand, helps monitor the internal temperature to maintain the correct conditions for cryopreservation or storage of gases in a liquid state. This is critical in both industrial and medical applications where stable cryogenic conditions are necessary.