Traceable® 6441TR Memory‑Loc Datalogging Thermometer; 2 Glass Bottle Probes

Traceable® 6441TR Memory‑Loc Datalogging Thermometer; 2 Glass Bottle Probes

The Traceable® Memory‑Loc Datalogging Thermometer provides long‑term, high‑accuracy temperature monitoring with over one million data point capacity. Featuring dual temperature‑buffered glass bottle probes and triple‑display functionality, it is ideal for refrigerators, freezers, incubators, and critical storage environments requiring continuous, traceable documentation. Precalibrated to NIST‑traceable standards, it delivers guaranteed accuracy immediately upon use.

Key Features

• Over one million data point capacity
• Store up to 10 unique alarm events
• Smart‑Alarm™ with visual/audible alerts—even after returning to normal conditions
• Triple‑display shows high, low, and current temperature simultaneously
• USB file download; compatible with TraceableLIVE® cloud storage
• 5‑second sampling rate
• Includes two glass bottle probes with nontoxic glycol solution
• Temperature‑buffered bottle probes mimic actual sample conditions
• Measurement range: –50 to 70°C (–58 to 158°F)
• Includes NIST‑traceable certificate from A2LA accredited (1750.01) calibration laboratory
• 1‑year warranty

More About This Item

Designed for extended monitoring, the Memory‑Loc thermometer records temperature at intervals from 1 minute to 24 hours, storing over one million locked data points—ideal for 21 CFR 11 compliant environments. When memory is full, recording stops to preserve data integrity.

High and low alarms can be set in 1° increments. The Smart‑Alarm™ system provides audible alerts and flashing LCD segments when temperatures exceed set limits, and logs up to 10 alarm events with timestamps for both the alarm occurrence and return‑to‑range.

Data transfers easily via USB in CSV format—no software required—and the unit continues recording during downloads. Status indicators include low battery, memory full, USB transfer, and active alarm state. Each probe features a 10‑ft microcable designed to allow doors to close securely around it.

Mounting options include magnetic strips, hook‑and‑loop strips, wall‑mount slots, or a flip‑open benchtop stand, making it adaptable to refrigerators, freezers, incubators, and environmental chambers.

Each Traceable® instrument includes an individually numbered Traceable® Certificate verifying accuracy from our ISO/IEC 17025:2017 (1750.01) calibration laboratory, accredited by A2LA. Measurements are traceable to SI units through NIST or other recognized national measurement institutes (NMIs) that are signatories to the CIPM Mutual Recognition Agreement. This eliminates the need for separate calibration, saving time and cost.

Technical Specifications

• Meter Measurement Type: Digital Indicator
• Number of Probe Channels: 2
• Temperature Range (°F): –58 to 158°F
• Temperature Range (°C): –50 to 70°C
• Accuracy: ±0.45°F (±0.25°C)
• Resolution: 0.01°
• Output: USB
• Data Logging: Yes
• Memory Capacity: Over 1 million data points (locked data)
• Alarm: Yes
• Min/Max Function: Yes
• Display Type: LCD, 1/2″H digits
• Height: 4 1/4″
• Width: 2 3/4″
• Depth: 3/4″
• Probe(s) Included: 2
• Probe Diameter: 1″
• Probe Length: 2 1/2″
• Cable Length: 120″
• Battery: 2 × AAA (included)
• Probe Type: Glass Bottle
• Description: Datalogging Thermometer; 2 Glass Bottle Probes
• Warranty: 1 year

Included Accessories

• Traceable® Certificate
• Two glass bottle probes with 10‑ft cable
• Magnetic strips
• Hook‑and‑loop strips
• Flip‑open stand
• Batteries

This Traceable® Memory‑Loc Datalogging Thermometer is ideal for refrigerators, freezers, incubators, stability chambers, and any application requiring secure, long‑term, high‑accuracy temperature monitoring with robust data integrity.

Guaranteed to have at least one year of calibration remaining on certificate.