testo 110 Advanced NTC Contact Thermometer
| Brand | testo |
|---|---|
| Origin | Germany |
| Model | 0560 1108 |
| Temperature Measurement Principle | NTC Thermistor |
| Measurement Type | Contact |
| Temperature Range | −50 to +150 °C |
| Resolution | 0.1 °C |
| Accuracy | ±0.2 °C (−20 to +80 °C), ±0.3 °C (remaining range) |
| Stability | Compliant with HACCP and EN 13485 requirements |
| Operating Environment | −20 to +50 °C |
Overview
The testo 110 Advanced NTC Contact Thermometer is a precision-engineered handheld temperature measurement instrument designed for rigorous use in food safety, cold chain logistics, HVAC maintenance, pharmaceutical storage, and laboratory quality control environments. It operates on the principle of negative temperature coefficient (NTC) thermistor sensing—where resistance changes predictably with temperature—enabling high reproducibility and stability across extended operating ranges. Unlike infrared or thermocouple-based systems, the testo 110 relies exclusively on direct physical contact via interchangeable NTC probes, ensuring minimal thermal inertia and rapid response times in low-temperature applications such as freezer monitoring, chilled transport validation, and ambient storage compliance verification. Its core architecture prioritizes metrological integrity over convenience, with all calibration-relevant electronics housed within the main unit and traceable to national standards per ISO/IEC 17025-accredited processes.
Key Features
- High-accuracy NTC sensor interface supporting probe-specific compensation algorithms for optimized linearity across −50 °C to +150 °C
- Large dual-line LCD display with backlight for legibility under low-light or refrigerated conditions
- User-configurable upper/lower alarm thresholds with audible alert activation upon limit breach
- Max/min value tracking and hold function for transient event capture without data logging hardware
- Rugged IP54-rated housing with integrated soft-grip protective sleeve (dishwasher-safe per DIN EN ISO 15883-1)
- Battery-powered operation (included AA cells) with >10,000-hour standby life and low-battery indicator
Sample Compatibility & Compliance
The testo 110 is not a standalone sensor but a calibrated readout unit requiring compatible NTC probe attachment. It supports a full ecosystem of application-specific probes—including penetration probes for frozen food cores (e.g., testo 0602 1192), surface probes with spring-loaded thermocouple junctions (e.g., testo 0602 1292), immersion probes for liquid baths (e.g., testo 0602 1392), and flexible cable probes for confined spaces. Each probe carries individual calibration certificates traceable to PTB (Physikalisch-Technische Bundesanstalt). The instrument meets regulatory expectations for critical control point (CCP) monitoring under HACCP plans and satisfies EN 13485:2016 requirements for medical device-related environmental monitoring. While not FDA 21 CFR Part 11–compliant out-of-the-box due to lack of electronic signature or audit trail functionality, it supports GLP/GMP-aligned manual recordkeeping when used with printed reports from the optional testo IR printer (model 0554 0010).
Software & Data Management
The testo 110 operates as a stand-alone field instrument without embedded memory or USB/Wi-Fi connectivity. All measurements are displayed in real time and may be manually documented or transferred via optional infrared printing. When paired with the testo IR printer, users generate timestamped thermal receipts compliant with internal SOPs for cold chain audits. No proprietary software installation or cloud synchronization is required—reducing IT overhead and cybersecurity exposure. For laboratories requiring digital archiving, third-party data loggers (e.g., testo Saveris 2) can integrate probe signals externally, though this necessitates separate validation per ISO/IEC 17025 Clause 5.9.
Applications
- Verification of refrigerated warehouse zones (−25 °C to −18 °C) and blast freezer performance
- Monitoring temperature excursions during pharmaceutical product transit (per WHO Technical Report Series No. 961)
- Validation of food holding temperatures per FDA Food Code §3-501.12 and EU Regulation (EC) No 852/2004
- Calibration checks of fixed-mounted temperature transmitters in HVAC ducts and chillers
- Field verification of incubator and stability chamber setpoints in R&D labs
FAQ
Does the testo 110 include a probe?
No—the testo 110 is a display unit only; an NTC probe must be purchased separately based on your application.
Can I calibrate the testo 110 myself?
Field calibration is not supported; periodic verification against a reference standard (e.g., dry-well calibrator traceable to NIST) is recommended annually or per organizational QA protocols.
Is the testo 110 suitable for measuring surface temperature of stainless steel?
Yes—when used with a dedicated surface probe (e.g., testo 0602 1292), it achieves ≤0.5 s response time on polished metal surfaces per ASTM E2877-20 guidelines.
What does “compliance with EN 13485” mean for this device?
It indicates that testo’s manufacturing and quality management system for this instrument conforms to the medical device quality standard—relevant for users in regulated healthcare or biotech environments requiring documented process controls.
How long does the battery last under continuous use?
Approximately 200 hours of active measurement time; automatic power-off after 10 minutes of inactivity extends service life significantly.
