Traceable® 4539TR High‑Accuracy Fridge/Freezer Thermometer; 2 Vaccine Bottle Probes

Traceable® 4539TR High‑Accuracy Fridge/Freezer Thermometer; 2 Vaccine Bottle Probes

The Traceable® High‑Accuracy Fridge/Freezer Thermometer provides precise, reliable monitoring for scientific, industrial, and vaccine‑storage applications. With an accuracy of ±0.3°C and a resolution of 0.01°, this instrument delivers dependable performance for critical environments. Each unit includes an individually numbered NIST‑traceable certificate from an A2LA‑accredited calibration laboratory, ensuring compliance with ISO/IEC 17025 calibration standards.

Key Features

• High accuracy of ±0.3°C (±0.6°F)
• 0.01° resolution
• Visual and audible alarms signal continuously until reset
• °C/°F selectable
• Includes two vaccine bottle probes
• Vaccine bottles designed to fit standard vaccine trays
• Liquid‑filled bottles insulate sensors from rapid temperature changes
• Bottles filled with nontoxic glycol (GRAS)
• Includes NIST‑traceable certificate from A2LA‑accredited calibration laboratory
• 1‑year warranty

More About This Item

Easily and accurately monitor temperature in refrigerators, freezers, and other controlled environments. The high‑accuracy alarm can be programmed in 0.1° increments. Once triggered, visual and audible alarms alert continuously until reset. The thermometer records and displays the exact time and date when alarms occur, as well as when minimum and maximum temperatures were reached.

The included vaccine bottle probes feature microcables that allow refrigerator or freezer doors to close on them without damage. The glycol‑filled bottles buffer the sensors from rapid temperature fluctuations, providing readings that mimic actual vaccine vial conditions. With two probes, the instrument is ideal for monitoring two adjacent storage areas simultaneously.

Technical Specifications

• Measurement Type: Digital indicator
• Probe Channels: 2
• Temperature Range: –58 to 158°F (–50 to 70°C)
• Accuracy: ±0.3°C
• Resolution: 0.01°
• Alarm: Yes
• Min/Max Function: Yes
• Low Battery Indicator: Yes
• Display: 0.75″ LCD
• Dimensions: 4‑1/2″ H × 2‑3/4″ W × 3/4″ D
• Cable Length: 120″ (10 ft)
• Probe Type: Vaccine bottle
• Battery: 2 × AAA (included)
• Description: High‑Accuracy Fridge/Freezer Thermometer; 2 Vaccine Bottle Probes
• Warranty: 1 year

Included Accessories

• Traceable® Certificate
• Two vaccine bottle probes with 10‑ft cables
• Magnetic strips
• Hook‑and‑loop strips
• Bench stand
• Batteries

This Traceable® high‑accuracy thermometer is ideal for laboratories, refrigerators, freezers, and any application requiring precise, buffered temperature monitoring for vaccine storage across two adjacent locations. It supports temperature QA/QC workflows and regulated cold‑storage environments.

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