Challenge Finding the right monitoring system to better maintain sample integrity in cold storage can be a challenge. The School of Public Health at a large, prestigious research academy had an aging fleet of ultra-low temperature (ULT) freezers. Challenges included increased cost of usage, unpredictable maintenance costs, and sample integrity threatened by the risk of equipment failure. Many factors can affect equipment performance, including frequency of maintenance, usage behavior, power fluctuations, and mechanical stress over time. Based on a diverse set of customers, indications show 30–50% of even well-maintained ULTs in the US are operating out-of-spec and exhibiting signs of mechanical stress. An average of 12% of ULTs will have a significant alarm condition each year. I

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