testo 150 T1 Temperature Data Logger Module with Integrated NTC Sensor

Overview

The testo 150 T1 is a precision-engineered, modular temperature data logger module designed for continuous, compliant environmental monitoring in regulated life science and pharmaceutical settings. It operates on the principle of resistance-based temperature measurement using a factory-calibrated, high-stability NTC (Negative Temperature Coefficient) thermistor embedded directly into the module housing. This integrated sensor delivers traceable, drift-compensated readings across its operational range — optimized for stability and long-term reproducibility in controlled environments such as cold rooms, stability chambers, warehouses, and cleanrooms. As a core component of the testo Saveris Pharma ecosystem, the T1 module is engineered to meet stringent validation and audit requirements, including those defined by EU GMP Annex 15, FDA 21 CFR Part 11, and ISO/IEC 17025. Its architecture supports deterministic data acquisition intervals (configurable from 1 second to 24 hours), real-time timestamping with internal RTC (real-time clock), and secure, time-synchronized logging — all foundational for GLP/GMP-compliant record retention.

Key Features

• Integrated NTC temperature sensor with documented calibration certificate traceable to national standards
• Modular design enabling seamless integration into existing testo Saveris communication infrastructure (WLAN/LAN gateways or UltraRange radio base stations)
• Visual alarm indication via programmable LED status light — flashing pattern configurable per limit violation event
• DIN EN 12830:2018 certified for use in refrigerated transport and storage applications requiring validated temperature monitoring
• Local display for immediate on-device verification of current reading, status, and battery level
• Low-power operation supported by included long-life alkaline batteries (typical service life >12 months at 15-minute logging interval)
• Robust IP54-rated enclosure suitable for installation in non-hazardous indoor environments with moderate dust/moisture exposure

Sample Compatibility & Compliance

The testo 150 T1 is not intended for direct sample contact; it monitors ambient air temperature in defined environmental zones. Its NTC sensor is optimized for gaseous media under standard atmospheric conditions (20–80 %RH, non-condensing). The module complies with essential regulatory frameworks governing pharmaceutical environmental monitoring: it supports ALCOA+ data integrity principles (Attributable, Legible, Contemporaneous, Original, Accurate), provides electronic signature capability via testo Saveris PRO/CFR software, and enables full audit trail generation including user actions, configuration changes, and alarm acknowledgments. All firmware and configuration files are digitally signed to prevent unauthorized modification — a requirement aligned with FDA 21 CFR Part 11 Subpart B §11.10(a).

Software & Data Management

Data from the T1 module is transmitted securely to testo’s cloud-based or on-premise platforms: testo Saveris Cockpit (remote dashboard access), testo Saveris PRO (for local network deployment), or testo Saveris CFR (21 CFR Part 11-compliant version with role-based access control, electronic signatures, and immutable audit logs). Raw measurements are stored with metadata including sensor ID, acquisition timestamp (UTC-synced), measurement uncertainty estimate, and communication status. Automated report generation supports PDF export compliant with ISO 14644-3 and WHO TRS 961 Annex 9. Historical data is retained indefinitely per customer-defined retention policies, with optional encrypted backup to NAS or S3-compatible storage.

Applications

• Continuous temperature monitoring in pharmaceutical cold chain logistics (e.g., GDP-compliant vaccine storage)
• Stability testing environments per ICH Q5C guidelines
• Environmental qualification of HVAC systems in cleanrooms (ISO 14644-1 Class 5–8)
• Warehouse mapping studies for seasonal temperature variation analysis
• Real-time deviation detection during sterilization cycle validation (e.g., autoclave chamber periphery monitoring)
• Supporting Annex 15 qualification protocols (IQ/OQ/PQ) for environmental monitoring systems

FAQ

Is the built-in NTC sensor field-replaceable?
No — the NTC sensor is permanently integrated and calibrated at the factory. Replacement requires return to an authorized testo service center for recalibration and certification.
Can the T1 module operate independently without a gateway?
No — it requires connection to a testo Saveris communication module (WLAN/LAN gateway or UltraRange radio base station) to transmit data and receive configuration updates.
Does the module support humidity measurement?
No — the T1 variant measures temperature only. For combined temperature/humidity monitoring, the testo 150 TH1 module is recommended.
What is the maximum allowable distance for UltraRange radio transmission?
Up to 100 m indoors and 500 m line-of-sight outdoors — subject to building materials and RF interference; site survey recommended prior to deployment.
Is battery replacement possible in the field?
Yes — the module uses standard AA alkaline batteries; replacement does not require recalibration or service intervention.