Ultra Low Temperature Data Logger for Dry Ice Shipping
Pharmaceutical shipping has been experiencing some difficulties in ensuring product stability during its journey through the world's cold chain network. Products that require a specific temperature to preserve their quality include vaccines, biologics, gene therapies, and clinical samples. In situations where dry ice is used, ultra-low temperature is essential since any temperature deviation affects product stability, lowers its effectiveness, or ends up in the rejection of the entire cargo.
Freshliance develops advanced cold chain monitoring solutions designed for ultra-low temperature applications. The Atlas Log-IUT Ultra Low Dry Ice Temperature Data Recorder and Fresh Keeper-IUT -90℃ Dry Ice Temperature Data Logger help pharmaceutical logistics teams monitor dry ice shipments with reliable temperature recording, secure data documentation, and improved visibility throughout transportation.
By combining accurate measurement technology with traceable reporting capabilities, Freshliance supports pharmaceutical companies in reducing temperature risks, improving cold chain compliance, and protecting valuable temperature-sensitive products from origin to destination.
The Importance of Dry Ice Temperature Monitoring
Why Dry Ice Is Used in Pharmaceutical Transport
Dry ice is indispensable in pharmaceutical transport because it maintains ultra-low temperatures necessary for vaccines, biologics, gene therapies, and other specialty drugs. It sublimates directly from solid to gas without leaving residue, providing a stable cooling source that does not require mechanical refrigeration. Proper temperature monitoring ensures that products remain within their validated storage conditions throughout transit.
Risks of Inadequate Temperature Monitoring
Failure to monitor dry ice shipment temperature profiles accurately can lead to severe consequences. Inaccurate readings or gaps in data may result in product degradation or loss of potency. Furthermore, lack of precise records complicates root-cause analysis after temperature excursions occur, delaying corrective actions and risking non-compliance.
Limitations of Conventional Data Loggers
Operating Range Constraints
Most standard data loggers are designed for moderate cold chain applications like refrigerated foods or standard frozen goods. Their sensors typically operate down to -40℃; below this threshold, temperature data logger accuracy declines sharply. Battery performance may significantly degrade under ultra-low temperature conditions, affecting recording reliability.
Data Integrity and Power Limitations
At ultra-low temperatures, battery performance deteriorates rapidly. Some conventional devices may experience reduced reliability under prolonged ultra-low temperature exposure or harsh transportation conditions.
Advantages of Ultra Low Temperature Data Loggers for Dry Ice Temperature Monitoring
Precision and Stability at -90℃ Conditions
The Atlas Log-IUT Ultra Low Dry Ice Temperature Data Recorder measures from -80℃ to +70℃ with ±0.5℃ accuracy across its full range. It supports up to 35,000 readings and features an LCD display showing operating status, alarm indication, Max./Min./Average temperature values, and battery level. The Fresh Keeper-IUT -90℃ Dry Ice Temperature Data Logger, designed for reusable or disposable use cases, offers similar high precision using a built-in NTC sensor capable of ±0.5℃ accuracy from -90℃ to +70℃. Its robust design allows direct placement inside dry ice containers without external probes.
Both models meet CE, RoHS, EN12830 standards and comply with WHO PQS E006/TR05.1 requirements—ensuring global acceptance for pharmaceutical cold chain operations.

Extended Recording and Traceability Features
Each device includes intelligent features tailored for traceability: configurable alarm points (up to six), mark functions (up to nine per trip), pause modes during recording interruptions, and automatic encrypted PDF/CSV report generation via USB connection—no software installation required. By connecting the logger to a computer via USB, encrypted PDF or CSV reports are generated automatically.
Application in Pharmaceutical Transport
Ensuring Vaccine Cold Chain Integrity
Vaccines are among the most temperature-sensitive pharmaceutical products; even brief exposure above threshold limits can destroy their potency. Continuous monitoring using Atlas Log-IUT Low Dry Ice Temperature Data Recorder ensures uninterrupted documentation throughout global distribution networks.
Users can generate and retrieve detailed reports directly without installing additional software. These reports include temperature trends, graphical analyses, and key statistics such as Max, Min, Average, and MKT. Freshliance Tools is used separately for configuring device parameters before deployment.
Supporting Biologics and Clinical Samples Shipping
Biologics such as monoclonal antibodies or cell-based therapies demand strict environmental control during storage and transport. The Fresh Keeper-IUT -90℃ Dry Ice Temperature Data Logger’s compact design (97×45×19.5 mm) fits easily into small insulated packages used for sample shipments by air or courier services.
Choosing the Right Freshliance Solution
Atlas Log-IUT Ultra Low Dry Ice Temperature Data Recorder
The Atlas Log-IUT Low Dry Ice Temperature Data Recorder is ideal for single-use applications requiring high-resolution temperature recording between -80℃ and +70℃. It automatically generates encrypted PDF/CSV reports post-shipment—eliminating manual configuration steps—and provides visual alarms via LCD display when deviations occur. Its IP65 protection grade ensures resilience against condensation during transit transitions between freezer environments.

Fresh Keeper-IUT -90℃ Dry Ice Temperature Data Logger
The Fresh Keeper-IUT -90℃ Dry Ice Temperature Data Logger offers greater flexibility through multi-use capability with configurable parameters such as logging intervals and alarm thresholds (up to 6 points). It supports disposable/reusable optional models with up to 35,000 readings memory capacity. The device’s rugged casing resists vibration during air freight while maintaining IP65 water resistance—making it suitable not only for vaccines but also diagnostic reagents or frozen food shipments requiring stringent control.
Both solutions integrate seamlessly with existing cold chain workflows. They connect to Windows and Mac systems via USB, enabling you to easily configure parameters with our intuitive Freshliance Tools software.

Conclusion
Ultra-low temperature monitoring has become indispensable in modern pharmaceutical logistics where product safety depends on precise thermal control under extreme conditions. By adopting Freshliance innovations like the Atlas Log-IUT Ultra Low Dry Ice Temperature Data Recorder and Fresh Keeper-IUT -90℃ Dry Ice Temperature Data Logger, logistics professionals gain confidence in maintaining full traceability from origin to destination while meeting international compliance requirements. Our solutions empower customers with accurate reporting, extended durability, and reliable performance in ultra-low temperature applications—helping ensure temperature conditions remain within predefined limits during transportation.
Optimize your pharmaceutical cold chain today with Freshliance’s ultra-low temperature monitoring solutions — support reliable cold chain management with accurate and traceable temperature records. Contact us today to explore more!
FAQ
Q: Why can’t regular data loggers be used for dry ice shipping?
A: Standard loggers typically operate down to only -40℃; their sensors lose accuracy below this range while batteries freeze under dry ice conditions near -80℃—causing unreliable readings or total device failure.
Q: How does an ultra-low temperature data logger work?
A: It uses specialized thermistor sensors calibrated for extreme cold environments like dry ice storage (-80℃ to -90℃). These sensors maintain accuracy while continuously storing measurement records even when exposed to extremely low-temperature dry ice environments.
Q: How to monitor dry ice temperature during pharmaceutical shipping?
A: Simply place a Freshliance Atlas Log-IUT Ultra Low Dry Ice Temperature Data Recorder inside your insulated package before sealing; it will automatically record temperature changes throughout transit until connected via USB post-delivery for report generation.
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