Traceable Model 90205-05 Waterproof & Shock-Resistant Digital Temperature Meter
| Brand | Traceable |
|---|---|
| Origin | USA |
| Model | 90205-05 |
| Temperature Range | –50 to +300 °C |
| Resolution | 0.1 °C (–19.9 to 199.9 °C), 1.0 °C elsewhere |
| Accuracy | ±1.0 °C (–20 to +100 °C) |
| Probe Dimensions | 203 mm × 3.5 mm (stainless steel) |
| Device Dimensions | 260.3 × 12.7 × 44.5 mm |
| Weight | 25 g |
| Compliance | NIST-traceable calibration certificate included |
Overview
The Traceable Model 90205-05 is a rugged, NIST-traceable digital temperature meter engineered for high-reliability operation in demanding laboratory, industrial, and field environments. Designed as a direct replacement for mercury-in-glass thermometers—particularly where safety, regulatory compliance, and environmental stewardship are paramount—it employs a precision platinum resistance sensor (PT100-class equivalent) housed in a hermetically sealed 316 stainless steel probe. Its measurement principle relies on the predictable, linear resistive response of the sensing element to thermal energy, converted via onboard analog-to-digital circuitry into stable, digitally displayed temperature values. The device operates across an extended range of –50 °C to +300 °C with dual-resolution output: 0.1 °C resolution within the most commonly used interval (–19.9 °C to 199.9 °C), switching to 1.0 °C resolution outside that band to maintain signal integrity and noise immunity. Calibration is performed against NIST-standard reference baths, and each unit ships with a documented, traceable calibration certificate compliant with ISO/IEC 17025 requirements for accredited laboratories.
Key Features
- Ruggedized IP67-rated enclosure ensures full protection against immersion (up to 1 m for 30 min) and mechanical shock—validated per IEC 60068-2-27 (50 g, 11 ms half-sine pulse).
- Chemically resistant 316 stainless steel probe (203 mm length × 3.5 mm diameter) withstands exposure to aqueous solutions, alcohols, acetone, dilute acids and bases—ideal for sterilization cycles, cleaning-in-place (CIP) validation, and wet-bench applications.
- Real-time display updates at 1 Hz (once per second), with simultaneous min/max memory recall accessible via dedicated front-panel buttons—no external software required.
- Ultra-low mass design (25 g) minimizes thermal lag during rapid ambient transitions; optimized for surface contact, immersion, and air-gap measurements.
- Auto-power-off after 10 minutes of inactivity preserves battery life; uses standard CR2032 coin cell (included) with typical 12-month operational life under normal use.
Sample Compatibility & Compliance
The Model 90205-05 is compatible with solid surfaces (metal, glass, polymer), liquids (aqueous, organic, viscous), and ambient air—provided probe immersion depth exceeds 50 mm for liquid measurements to ensure thermal equilibrium. It meets ASTM E74-22 requirements for verification of liquid-in-glass and digital thermometers used in calibration laboratories. Its NIST-traceable calibration supports GLP and GMP documentation workflows, including audit-ready records for FDA 21 CFR Part 11-compliant environments when paired with TraceableLog™ software (optional). The device carries no hazardous substance declarations per RoHS Directive 2011/65/EU and contains zero mercury, lead, or cadmium—fully aligned with EPA Mercury-Containing Equipment Reduction Act guidelines.
Software & Data Management
While fully functional as a standalone instrument, the 90205-05 integrates seamlessly with TraceableLog™ PC software (Windows/macOS) via optional USB interface module (sold separately). This enables time-stamped data logging at user-defined intervals (1 s to 24 h), export to CSV/Excel, graphical trend analysis, and automated report generation—including calibration history, deviation tracking, and uncertainty budgeting per GUM (JCGM 100:2008). All logged data includes embedded metadata: operator ID, location tag, probe serial number, and environmental timestamp—supporting full 21 CFR Part 11 electronic record integrity when configured with digital signature and audit trail modules.
Applications
- Validation of autoclave, oven, incubator, and cold-chain transport temperature profiles per ISO 13485 and ICH Q5C.
- In-process monitoring of chemical reaction exotherms, distillation endpoints, and solvent evaporation kinetics.
- Field-based environmental monitoring in wastewater treatment plants, agricultural research plots, and HVAC commissioning.
- QC release testing of pharmaceutical excipients, food-grade packaging materials, and medical device sterilization indicators.
- Educational labs requiring durable, low-cost instrumentation for thermodynamics, heat transfer, and material science experiments.
FAQ
Is the calibration certificate issued by an ISO/IEC 17025-accredited body?
Yes—the certificate is issued by a Traceable®-accredited calibration laboratory operating under ISO/IEC 17025:2017, with uncertainty budgets reported at k=2 coverage factor.
Can the probe be immersed in boiling water or steam continuously?
The probe is rated for intermittent immersion up to +300 °C; continuous exposure above +150 °C may accelerate long-term drift—recommended maximum continuous duty is +120 °C.
Does the unit support data export without proprietary software?
No—the internal memory stores only min/max values; full data logging requires TraceableLog™ or third-party Modbus-compatible SCADA integration via optional RS485 adapter.
What is the recalibration interval recommendation?
Annual recalibration is recommended for GLP/GMP use; semi-annual verification is advised for critical process control applications per ASTM E74 Section 8.2.
