Fresh Keeper-IUT -90°C Dry Ice Temperature Data Logger
A reusable external-probe logger for dry ice, ultra-low freezers and specialist cold-chain applications. It combines real-time LCD status, configurable alarms, temporary reporting and automatic PDF/CSV output.
Introduction
Fresh Keeper-IUT is a reusable ultra-low temperature data logger developed for dry ice transportation and storage. Its internal NTC sensor records temperatures across a wide range from -90°C to +70°C, making it suitable for vaccines, stem cells, gene-detection materials, biological samples and other products that require stable low-temperature conditions.
The logger includes a clear LCD display that presents the current reading, maximum and minimum values, alarm condition, battery status and recording state. Before use, parameters can be configured with Freshliance Tools, including logging interval, start delay, alarm thresholds, start method and report settings.
After monitoring is complete, the device connects directly to a computer through USB 2.0 and automatically generates PDF, CSV or combined PDF-and-CSV reports. The pause and temporary-report functions allow users to inspect data during an active trip and continue recording afterwards.
Key Features and Benefits
Ultra-low temperature range
Records from -90°C to +70°C for dry ice and low-temperature storage applications.
Reusable operation
Designed for repeated monitoring assignments with up to 120 days of battery life.
Configurable parameters
Set logging interval, start delay, alarm thresholds and report options before use.
Automatic reports
Generate PDF, CSV or combined reports directly through USB without an extra reader.
LCD alarm display
Review current temperature, alarm status, battery condition, maximum and minimum values.
Temporary report mode
Read an interim report while allowing the logger to continue recording.
Marks and pause function
Document handling events and temporarily pause monitoring when required.
IP65 protection
Protected against dust and water exposure during logistics and storage operations.
How It Works
Typical Applications
- Dry ice shipments
- Vaccine transportation and storage
- Stem cell and gene-detection materials
- Biological samples and laboratory products
- Ultra-low-temperature pharmaceutical logistics
- Low-temperature storage facilities
- Clinical and life-science cold-chain monitoring
- Air, road and sea transportation
Confirm calibration, required operating range, battery life and monitoring duration with Gee Gee Data Monitoring System EMS (Pty) Ltd before ordering.
Fresh Keeper-IUT Specifications
| Product | Fresh Keeper-IUT -90°C Dry Ice Temperature Data Logger |
|---|---|
| Type of Use | Multi use |
| Sensor | Internal NTC sensor |
| Temperature Range | -90°C to +70°C |
| Accuracy | ±0.5°C F.S. |
| Resolution | 0.1°C |
| Memory Capacity | Maximum 35,000 readings |
| Logging Interval | 1 minute to 24 hours |
| Start Delay | 0 minutes to 24 hours |
| Alarm Points | Maximum 6 points |
| Event Marks | Maximum 9 points |
| Report Format | PDF, CSV, or PDF and CSV |
| Connection | USB 2.0 |
| Battery | 3.6 V lithium battery |
| Battery Life | Maximum 120 days |
| Shelf Life | One year |
| Protection Class | IP65 |
| Compatible Operating Systems | Windows and macOS |
| Dimensions | 97 mm × 45 mm × 19.5 mm |
| Weight | Approximately 60 g |
| Standards | EN12830, HACCP, GSP and DO-160 applications |
Freshliance Tools
Freshliance Tools is the configuration, retrieval and analysis software used with the Fresh Keeper-IUT. When the logger is connected through USB, the software automatically detects the device and displays the device ID, battery level, logging interval, operating status, start mode and saved parameters.
Before deployment, users can configure the logging interval, start delay, alarm limits, time zone, start mode and report settings. Recorded ultra-low-temperature data can be reviewed using interactive graphs, detailed tables and maximum, minimum, average and MKT statistics.
The software supports export in PDF, CSV, TXT and PNG formats, comparison of several loggers on one chart and multiple languages. Standard PDF and CSV reports may also be generated automatically through USB without using the software for basic report retrieval.
Parameter configuration
Prepare alarms, intervals, delay, start mode and reporting options before deployment.
Automatic device detection
Review device identity, battery condition, operating state and saved configuration.
Ultra-low-temperature analysis
View graphs, detailed records and maximum, minimum, average and MKT statistics.
Flexible report exports
Export PDF, CSV, TXT and PNG files and compare multiple devices on one chart.

















