Automated Temperature Monitoring of Freezers and Cryogenic Tanks

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Cleveland - Ohio - US


CLEVELAND - Sept. 27, 2019 - PRLog -- Accsense Monitoring System Ensures Biobank is Compliant

CAS DataLoggers provided the automated temperature monitoring solution for a biorepository storing a wide range of life science materials including blood and tissue samples, common and experimental drugs, and many other high-value specimens and materials. Every material stored in the repository's medical refrigerators, freezers and cryogenic tanks required continual temperature monitoring and historical data archiving to ensure the viability of the inventory as well as be compliant with the FDA's Title 21 CFR Part 11 ( and other regulatory demands. To find a single solution addressing all these concerns, senior staff began searching for an automated temperature monitoring and alarm system capable of high-precision measurements and archiving, and advanced alarm features including calls over a landline or cell or to send text messages and email alerts. The system also needed to be both cost-effective and easy to use and maintain, with power over Ethernet technology to decrease the number of wires required to install the network.


The biobank installed 12 Accsense A2-05 Ethernet Wired Temperature Measurement Pods ( throughout their medical storage area, with temperature probes measuring in the medical refrigerators, freezers, and cryogenic tanks to provide continuous temperature monitoring. The Accsense automated temperature monitoring system supported power over Ethernet for quick and easy installation and setup, featuring centralized management with no software to install–workers just plugged the monitor into an active Ethernet port and the connection to the cloud was established.


Specifically designed for measuring temperatures in medical refrigerators, freezers, incubators, and in cryogenic storage, the Accsense A2-05 LAN-wired data loggers each featured inputs for two external RTD temperature probes with a wide range of -100°C (-148°F) to +100°C (+212°F) for use in refrigerators and freezers, and an additional input for 1 thermocouple measuring from -200°C (-328°F) to +400°C (+400°F) for use in their cryogenic storage tanks, placing the probe in the unit's vapor chamber.  Each pod included a power adapter and Ethernet cables, supporting power over Ethernet for a lower cost and easier maintenance compared to traditional wiring. In case of a power failure or network connection loss, the Accsense system could keep running for 6 hours on its internal lithium battery, during which the data loggers would continue to buffer data. During outages, the pods could store up to 256 data points until connection was restored, ensuring that the data was continuous. Additionally, the wired pods could be utilized with other Accsense wired and wireless data loggers to further expand the system if desired.

For more information on the Accsense A2-05 Ethernet Wired Temperature Measurement System ( contact a CAS Data Logger Applications Specialist at (800) 956-4437 or request more information (

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