Traceable® 6539TR Temperature Bluetooth® Enabled Data Logger; RTD Probe

Traceable® 6539TR Temperature Bluetooth® Enabled Data Logger; RTD Probe

The Traceable® Bluetooth® Enabled Data Logger with platinum RTD probe provides ultra‑low‑temperature monitoring for critical materials such as vaccines, biological samples, pharmaceuticals, and cryogenic research materials. The rugged stainless steel RTD probe and FEP‑coated cable allow accurate measurements down to –90°C (–130°F), ensuring sample integrity throughout storage or transport. Users can configure settings, download data, and verify shipment conditions directly from any Bluetooth‑enabled smartphone or tablet using the free TraceableGO™ App. Each unit is precalibrated to NIST‑traceable standards for guaranteed accuracy immediately upon use.

Key Features

• Connect via Bluetooth® using any smartphone or tablet
• View and download data with the free TraceableGO™ App
• Export data from TraceableGO™ to TraceableLIVE® cloud service*
• Stores up to 90 alarm events
• Large 2″ × 1″ LCD for easy viewing of readings and setup parameters
• Monitors temperatures below –80°C for critical sample protection
• 10‑ft (3‑m) FEP‑coated cable with 316 stainless steel probe tip
• Platinum RTD sensor provides wider range and greater accuracy
• Includes NIST‑traceable certificate from A2LA accredited (1750.01) calibration laboratory
• 1‑year warranty

More About This Item

Designed for transport and storage monitoring, this compact Bluetooth® logger fits easily inside cryogenic shippers, freezers, coolers, and insulated containers. It continuously tracks environmental conditions and provides immediate feedback once shipments arrive—allowing users to verify whether temperature excursions occurred during transit.

Configure the logger directly from your device using the TraceableGO™ App. Set logging intervals (1 minute to 12 hours), alarm thresholds, memory mode, unit preferences, and more. Press START on the logger to begin monitoring; upon delivery, double‑press START/STOP to enable Bluetooth® and export data to your device. The logger displays current temperature, Min/Max, run time, and alarm time.

Measurements update every 5 seconds, and logging duration reaches up to 227 days (7.5 months) at a 5‑minute interval. The device stores up to 90 alarm events, each recording when the alarm occurred and when conditions returned to acceptable ranges.

Optional TraceableLIVE® cloud service allows centralized storage of unlimited trip data, multi‑logger tracking, and email report generation—ideal for regulatory compliance and multi‑site monitoring.

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.

Technical Specifications

• Number of Channels: 1
• Input Type: Temperature; platinum RTD probe
• Width: 3 1/2″
• Height: 2″
• Temperature Range (°F): –130 to 212°F
• Temperature Range (°C): –90 to 100°C
• Temperature Resolution: 0.1°
• Temperature Accuracy: ±0.4°F (±0.2°C)
• Sampling Rate: 1 minute to 12 hours
• Memory Size: 64K (65,536 data points); 7.5 months at 5‑minute interval
• Interface: Bluetooth®
• Battery Type: 2 × AAA (included)
• Display Type: Multiline LCD
• Description: Temperature Bluetooth® Enabled Data Logger; RTD Probe
• Warranty: 1 year

Included Accessories

• Traceable® Certificate
• Stainless steel RTD probe with FEP‑coated cable
• Batteries

This Traceable® Bluetooth® Enabled RTD Data Logger is ideal for cryogenic storage, ultra‑low‑temperature freezers, vaccine transport, pharmaceutical logistics, and any application requiring precise monitoring below –80°C. The platinum RTD sensor delivers exceptional accuracy and stability, while Bluetooth® connectivity ensures fast setup, secure data capture, and seamless integration with TraceableGO™ and TraceableLIVE® cloud services.

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

*TraceableLIVE® subscription required to upload data from the TraceableGO™ App.

For sale only in Canada, Europe, and USA.