The Public Health Authority of the Slovak Republic (UVZSR) is the national reference body for laboratory diagnostics of diseases of viral and bacterial origin. Faced with the absolute requirement to preserve irreplaceable biological samples stored at temperatures down to -80°C, UVZSR deployed JRI’s Nano SPY sensors to ensure continuous, automated monitoring that meets the strictest quality standards, including ISO 15189 and ISO/IEC 17025.
When Reliability Is Non-Negotiable

UVZSR hosts several National Reference Centres dedicated to critical pathogens, covering influenza, poliomyelitis, meningococci, salmonellosis and arboviruses. These centres rely on the long-term preservation of biological samples of unique scientific and epidemiological value.
These collections represent an irreplaceable memory for national and European public health. Their integrity directly conditions the reliability of diagnostics and the country’s epidemiological surveillance programmes.
To preserve them, UVZSR laboratories use ultra-low temperature freezers operating between -50°C and -80°C. In these extreme conditions, even a brief thermal deviation can irreversibly compromise sample viability.
Demanding Technical and Regulatory Constraints
How did UVZSR secure the monitoring of its ultra-low temperature freezers? By deploying 6 JRI Nano SPY sensors on its critical freezers, the Slovak authority established 24/7 automated monitoring with wireless data transmission to the JRI-MySirius cloud platform, multi-channel alarm management and complete traceability compliant with ISO 15189 and ISO/IEC 17025 requirements, with no manual intervention required from laboratory staff.
Before this deployment, teams faced several simultaneous challenges. Monitoring relied on manual readings, exposing data to risks of human error and oversight. Detection of thermal anomalies occurred too late, only after visual observation. Data documentation remained fragmented, making audit preparation a time-consuming process.
ISO 15189 and ISO/IEC 17025 standards impose complete traceability and total data integrity. These requirements left no room for approximation.
“JRI temperature monitoring provides us with confidence that our biological samples are stored safely and continuously monitored, supporting reliable public health diagnostics.”
Public Health Authority of the Slovak Republic (UVZSR)
The JRI Solution: Nano SPY at the Heart of a Complete Monitoring System
After evaluating several solutions available on the market, UVZSR selected JRI’s Nano SPY. This ultra-low temperature data logger was specifically designed for the most demanding environments, and is part of JRI’s Pharma and Health solutions portfolio.
Its external probe enables installation on the outside of the enclosure, without disrupting the internal thermal cycle of the freezer. This is a decisive advantage for such sensitive equipment. Wireless data transmission feeds data directly to the JRI-MySirius cloud platform, while the internal memory ensures continuous recording in the event of a communication interruption. The long battery life guarantees autonomous operation without regular team intervention.

The JRI-MySirius Platform: Centralisation and Regulatory Compliance
Data collected by the Nano SPY sensors is centralised on the JRI-MySirius Health platform. This Software-as-a-Service solution provides UVZSR with a real-time dashboard to remotely visualise the status of each freezer.
Alarm management is fully configurable. When a threshold is exceeded, immediate notifications are sent by SMS and email to on-call teams via the MySiriusAlert mobile application. All data is securely archived on Microsoft Azure servers, certified ISO 27001, guaranteeing long-term integrity and immutability.
The platform automatically generates traceability reports ready for quality audits, accompanied by a complete activity log. The Calibration module ensures metrological management of sensors in line with ISO 17025 requirements. Access to historical data over an extended period also enables the retrospective analyses required for epidemiological surveillance.
Before and After: The Impact of Nano SPY Deployment
| Criteria | Before JRI | After Nano SPY Deployment | Gain |
|---|---|---|---|
| Monitoring mode | Manual readings, risk of human error or oversight | Automated monitoring 24/7 | Full continuity and reliability |
| Anomaly detection | Late detection, after visual observation | Instant multi-channel alerts (SMS, email) | Maximum responsiveness, sample protection |
| Data traceability | Manual documentation, risk of gaps | Automatic secure archiving, complete audit log | ISO 15189 / ISO/IEC 17025 compliance guaranteed |
| Workload | Frequent manual interventions by staff | Automatic transmission, zero manual input | Significant time savings for teams |
| Coverage | Partial and occasional monitoring | 6 freezers monitored continuously | Complete security of the critical storage fleet |
| Data access | Local data, limited access | Remote access via web and mobile application | Increased flexibility and responsiveness |
Concrete Results for National Public Health
The deployment of the JRI solution delivers measurable and immediate benefits to UVZSR. All six ultra-low temperature freezers are now monitored without interruption, from -50°C to -80°C, eliminating any blind spot in the protection of biological collections.
The risk of sample loss is significantly reduced thanks to real-time alerts. As soon as a thermal drift is detected, on-call teams are instantly notified, enabling them to intervene before any irreversible damage occurs.
Compliance with ISO 15189 and ISO/IEC 17025 requirements is now continuously guaranteed. Audit preparation, previously time-consuming, is simplified by the automatic generation of reports and the availability of the complete activity log. Laboratory teams can focus on their scientific missions, freed from the constraints of manual readings and administrative documentation.
An International Dimension in the Service of European Public Health
This deployment in the Slovak Republic illustrates JRI’s ability to support public health and life sciences institutions at an international level. The solution meets the requirements of the most demanding European and international standards, including ISO 15189 for medical laboratories and ISO/IEC 17025 for testing and calibration bodies.
With offices and teams established across Europe, the Americas and Asia, JRI is the trusted partner for public health organisations that cannot afford any failure in monitoring their critical storage conditions. UVZSR joins more than 15,000 customers worldwide who rely on JRI solutions to protect their sensitive products.
Towards an Extended Monitoring Infrastructure
Following the success of this initial deployment, UVZSR is considering extending the monitoring system to additional freezers and storage equipment within its laboratories. Regular laboratory sensor calibration services are also planned to guarantee long-term measurement accuracy and maintain compliance with accreditation standards.
This collaboration demonstrates JRI’s ability to provide lasting support to public health institutions in their quality assurance approach, well beyond the simple supply of equipment.
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