Problem: For a lab manager, these scenarios are all too familiar:

• A medical research lab has a -20°C freezer where the door is frequently left ajar and there is no door alarm. 
• In an academic biology lab, a -20°C freezer is accessed on average 20 times an hour and also has a -80°C freezer that warms to -55°C routinely due to new lab students and sustained door openings, thinking “hmmm, what did I come here for again?”
• As a lab manager, you receive a phone call at 3 a.m. saying a freezer has alarmed which forces you to go into the lab in the middle of the night.