Cold Chain Monitoring – Vaccine

Vaccines must be stored properly from the time they are manufactured until the time they are administered. Assuring vaccine quality and maintaining the cold chain is a shared responsibility among manufacturers, distributors, public health staff, and healthcare providers. A proper cold chain is a tempera­ture-controlled supply chain that includes all equipment and procedures used in the transport, storage and handling of vaccines from the time of manufacture to administration of the vaccine. Too much exposure to heat, cold, or light at any step in the cold chain can damage vaccines, resulting in loss of vaccine potency. Therefore, the CDC has published very strict guidelines for properly maintaining the cold chain for vaccines, including the requirements of the temperature sensing system.

TelseSense Temperature Sensing System Meets CDC Requirements and More
CDC requires that the temperature sensors for vaccines have the following capabilities:
  • Continuous temperature monitoring
  • Stand-alone temperature monitors that can record multiple temperatures
  • Accompanied by computer software that allows for downloading data
  • Provide an accurate picture of minimum and maximum temperatures and the time spent at each temperature.


TelseSense’s temperature and light sensing systems meet these requirements and more. TeleSense’s sensors continuously monitor and record temperature and light intensity and immediately send alerts when the parameters go out of acceptable range. These alerts can be sent as text messages and emails.

How Do We Do It

TeleSense’s solution uses the latest IoT technology to monitor the temperature and light intensity in the vaccine cooling unit and send the data to cloud for storage and processing. TeleSense’s TeleSensors are a family of small battery powered or plugged-in sensors that can be placed inside the vaccine cooling unit for the entire cold chain starting from manufacturing of the vaccine, transportation and distribution, to arrival at the provider facility and storage.

TeleSensors continuously monitor the temperature and light conditions and communicate with an on-site/on-board wireless gateway that sends the data to the cloud for storage and automatic processing. If at any time the parameters get out of the accepted user-defined range, real-time alerts are instantly generated via text and email alerting the personnel to take immediate corrective action and save the food from spoiling.


 Historic Temperature and Light Data

The cloud-based software allows for the generation of customized reports – including time vs temperature and light intensity – in graphs and texts for inspectors and internal audits. All the data can be exported as a PDF for daily or weekly time periods. This capability completely automates and reduces the cost of bookkeeping, which is one of the CDC requirements.


Temperature and light data can be sent to a dashboard which can be viewed on any browser or mobile device, giving you a bird’s eye view of the entire cold chain. You can customize your dashboard and set trigger points as to when you want to receive alerts. If the temperature and light in any monitored unit goes outside of user-defined acceptable range, you will instantly receive a notification via text, email, or both, enabling you to take corrective action and save the vaccine.