testo 150 TUC4 Temperature Data Logger Module with 4 Thermocouple Interfaces

Overview

The testo 150 TUC4 is a DIN EN 12830:2018–certified, 4-channel temperature data logger module engineered for continuous, regulatory-compliant environmental monitoring in pharmaceutical, biotech, and clinical storage applications. It operates on the principle of high-accuracy thermocouple-based temperature measurement—supporting Type K, J, T, and N thermocouples via four standardized TUC (Testo Universal Connector) interfaces. Unlike fixed-channel loggers, the TUC4 enables hot-swappable probe replacement and field calibration without interrupting ongoing data acquisition—a critical capability for uninterrupted 24/7 monitoring during validation or routine operation. As a core component of the testo Saveris Pharma ecosystem, the module functions as a decentralized sensing node within a distributed architecture, transmitting time-stamped, traceable measurement data to centralized software platforms while maintaining full audit trail integrity.

Key Features

• Four independent TUC interfaces supporting plug-and-play connection of all testo TUC-series thermocouples (including Pt100-compatible adapters via optional interface converters)
• Real-time visual alarm indication via integrated bi-color LED—flashing red upon exceedance of user-defined upper/lower limits
• Modular integration: operates standalone or seamlessly connects to testo communication modules (WLAN/LAN gateways) or testo UltraRange long-range radio transceivers (up to 1 km line-of-sight, 300 m indoor)
• Battery-powered design with low-power electronics enabling >12 months typical operational life (CR123A lithium primary cells, included)
• On-device display showing live channel values, status icons, and alarm indicators—no external device required for basic verification
• DIN EN 12830:2018 certification confirms compliance with requirements for temperature monitoring equipment used in refrigerated transport and storage of medicinal products
• Robust industrial housing rated IP54 for dust and splash resistance, suitable for cleanroom-adjacent and warehouse environments

Sample Compatibility & Compliance

The testo 150 TUC4 is not a standalone instrument but a validated sensor interface module intended exclusively for use with testo-certified TUC thermocouples—including Class I and Class II probes compliant with IEC 60584-1 for thermoelectric emf accuracy. It supports measurement ranges from –200 °C to +1372 °C depending on connected probe type. All configurations are designed to meet EU Annex 15 (Validation of Aseptic Processes), WHO TRS 961 Annex 9 (Good Distribution Practice), and FDA 21 CFR Part 11 requirements when deployed with testo Saveris PRO/CFR software. The embedded firmware enforces secure boot, write-protected memory, and tamper-evident logging—ensuring data integrity throughout the recording lifecycle. Each unit ships with a factory calibration protocol traceable to national standards (DAkkS-accredited calibration laboratory).

Software & Data Management

Data generated by the TUC4 is transmitted securely to testo Saveris PRO (for general GxP environments) or testo Saveris CFR (fully 21 CFR Part 11–compliant, with electronic signatures, role-based access control, and full audit trail). The testo Saveris Cockpit remote access unit provides browser-based real-time dashboards, configurable alarm escalation (email/SMS), and automated report generation per ISO/IEC 17025 and EU GDP Annex 15 templates. All raw data files are stored in encrypted binary format with SHA-256 hash verification; export options include CSV, PDF, and XML for third-party LIMS or ERP integration. Firmware updates are digitally signed and applied over-the-air via authenticated gateway connections.

Applications

• Continuous temperature monitoring of cold chain logistics (refrigerated trucks, containers, and pharma distribution centers)
• Environmental qualification of stability chambers, incubators, and ultra-low temperature freezers (–80 °C)
• Mapping studies for warehouses and cleanrooms per ISPE Guide: Cold Chain Management and EU GDP Chapter 9
• Process validation support for lyophilization cycles, autoclave sterilization, and controlled room temperature (CRT) storage areas
• Backup monitoring layer in HVAC-controlled facilities where redundancy is mandated by internal SOPs or regulatory inspection expectations

FAQ

Is the testo 150 TUC4 suitable for use in sterile manufacturing environments?

Yes—when installed outside classified zones (e.g., in utility corridors or ceiling voids) and connected via shielded TUC cables routed through pass-through ports, it meets ISO 14644-1 Class 5–8 environmental monitoring requirements.
Can I replace a thermocouple while the module is actively logging?

Yes—the TUC interface supports hot-swapping without data interruption or system reset, preserving timestamp continuity and measurement integrity.
Does the module store data locally if network connectivity is lost?

Yes—it retains up to 1 million timestamped readings in non-volatile memory (minimum 120 days at 1-minute intervals) and resumes synchronized transmission upon reconnection.
What validation documentation is provided out-of-the-box?

Each unit includes a test certificate, calibration protocol (with uncertainty budget), and IQ/OQ template packages compatible with GAMP 5 methodology.
Is battery replacement possible without compromising data integrity?

Yes—battery change is a user-serviceable procedure documented in the operator manual; firmware ensures zero data loss or clock drift during swap due to onboard supercapacitor hold-up.