LogTag Data Loggers

[email protected]

1300 08 20 20

Dry Ice LogTags

LogTag Ultra-Low Temperature Loggers

LogTag Dry Ice Loggers are designed for precise temperature monitoring in extreme cold environments, such as dry ice shipping at approximately -78°C and fixed low-temperature freezers. These reliable, user-friendly devices ensure the integrity of temperature-sensitive goods like vaccines, pharmaceuticals, and biological samples. Below, we explore LogTag’s specialized models for dry ice shipping and fixed freezer monitoring.

Dry ice shipping temperature monitoring

Transporting goods in dry ice, which maintains temperatures around -78°C, requires robust data loggers to ensure compliance and product safety. LogTag offers two models tailored for dry ice shipping: the UTREL-16F for external probe monitoring and the TRIL-8 for direct monitoring within the shipment.

UTREL-16F

External Probe Monitoring

The LogTag UTREL-16F is ideal for monitoring dry ice shipments without exposing the logger to extreme cold. Its external probe design allows the logger to remain outside the shipment while the probe measures internal temperatures.

  • Temperature Range: -90°C to +40°C (-130°F to +104°F)
  • Key Features: External probe for accurate readings, USB connectivity for easy data download, and a fixed battery (hibernation recommended when not in use).
  • Benefits: Longer battery life compared to probe-less models, as the logger avoids direct exposure to dry ice temperatures. Real-time temperature display without opening the shipment.
  • Use Case: Perfect for scenarios where external monitoring is preferred, such as high-value pharmaceutical shipments requiring precise temperature records.
LogTag TRIL-8

Direct Monitoring

The LogTag TRIL-8 is a probe-less logger designed to be placed directly within dry ice shipments, providing accurate temperature readings in harsh conditions.

  • Temperature Range: -80°C to +40°C (-112°F to +104°F)
  • Key Features: Stores up to 8,000 readings, LED indicators for immediate alerts, and reusable for up to 1,000 hours at -80°C. Requires a USB interface cradle and LogTag Analyzer software for configuration and data retrieval.
  • Benefits: Simplifies monitoring by eliminating the need for an external probe. Durable design ensures reliable performance in extreme cold.
  • Use Case: Ideal for cold chain logistics, such as transporting RNA vaccines or biological samples in dry ice.

NOTE: Requires LogTag Reader

Fixed freezer temperature monitoring

For ultra-low-temperature freezers used in laboratories and medical facilities, the LogTag UTREL30-WiFi offers advanced monitoring capabilities to ensure consistent performance and compliance with stringent storage requirements.

LogTag UTREL-WiFi

Ultra-Low Freezer Monitoring

The LogTag UTREL30-WiFi is a dual-channel data logger designed for fixed installations in ultra-low-temperature freezers, providing real-time data and remote access.

  • Temperature Range: -90°C to +40°C (-130°F to +104°F)
  • Key Features: Stores up to 16,129 readings per channel, real-time data upload to LogTag Online via WiFi, LCD display for at-a-glance monitoring, and audible/LED alerts for temperature excursions.
  • Benefits: Automated data uploads and remote access ensure continuous monitoring without manual intervention. The external probe and optional glycol buffer enhance accuracy for vaccine storage compliance.
  • Use Case: Essential for fixed freezers storing sensitive materials, such as RNA vaccines or research samples, where real-time alerts and data logging are critical.

LogTag’s dry ice and freezer loggers provide reliable, accurate solutions for both shipping and fixed storage applications. Whether you need direct monitoring with the TRIL-8, external probe monitoring with the UTREL-16F, or advanced WiFi-enabled logging with the UTREL30-WiFi, LogTag ensures your temperature-sensitive goods remain within safe parameters.

[remotepage page="shipping-insurance.html"]
Latency explained

What is latency?

Latency, when it comes to temperature logging, refers to the delay between a change in temperature and when that change is detected and recorded by the logger. This delay can be due to the sensor’s design, the materials it’s placed in, or the logging interval. While it might sound like a disadvantage, latency can actually serve a useful purpose in certain environments—particularly where short-term temperature spikes are common but not harmful.

For example, in a busy commercial fridge, the temperature may briefly rise every time the door is opened. A logger with high latency won’t immediately react to these short fluctuations, helping to avoid unnecessary alarms or false data indicating a problem when there isn’t one. In these cases, a slight delay in response acts like a filter, focusing attention on real issues—such as prolonged exposure to unsafe temperatures—while ignoring the everyday ups and downs that don’t affect product quality or safety.

Differrnt connections

Connecting your logger

Depending on the type of logger you have, connecting your logger to your PC means either:

  • inserting into the Reader,
  • plugging it into a USB port, or
  • connecting it via a USB cable.
comparing gen1 and gen 2

What's so good about USB?

First Generation LogTags use a separate Reader (sometimes called a dock) for configuration and for downloading recorded data. 

The Second Generation loggers only require a USB port or cable. Apart from saving the cost of the Reader, this makes them much better suited for shipping, because the recipient doesn’t need a LogTag Reader to download a report about the shipment’s journey.

comparing gen1 and gen 2