Fluke 53 II Temperature Logging Digital Thermometer
Features:
✔ Single Input digital thermometer with data logging for lab, QA, process calibration, food safety and HVAC
✔ Logs up to 500 points of data at user adjustable recording intervals
✔ Measures J, K, T, E, R, S, and N-type thermocouples
✔ Presents results in °C, °F, or Kelvin (K) on a large backlit display
✔ Provides a recall function to easily review logged data
The Fluke 53 II single-input digital thermometer has a laboratory-accuracy response time of 0.05% + 0.3°C. Additionally, it stores up to 500 temperature data points in internal memory. Viewing results and retrieving logged data for additional examination is made simple by the big, illuminated display and user-friendly front panel. Additionally, the sleep mode feature prolongs battery life, allowing for a thousand hours of use on average.
Product overview: 53 II Temperature Logging Digital Thermometer
The Fluke 53 II single input digital thermometer delivers fast response with laboratory accuracy (0.05% + 0.3°C). And it logs up to 500 points of temperature data to internal memory. You can use the 53 II to measure contact temperature on motors, insulation, breakers, pipes, corroded connections, liquids, and wires with industrial standard J, K, T, E, N, R, or S-type thermocouple temperature sensors. The user-friendly-front panel and large, backlit display make it easy to view results and recall logged data for further review. And the sleep mode feature preserves battery life to give you a typical thousand hours of operation.
Other useful features:
- Easy-to-access battery door that allows replacing the battery without breaking the calibration seal
- Comes with splash- and dust-resistant case protected by an impact-absorbing holster and a three-year warranty
- Powered by three, standard AA batteries -30-
- Includes a real-time clock that captures the exact event time
- Features an infrared USB communication port to allow data to be exported to optional Fluke View Forms® Temperature PC software for further analysis and graphing
- Includes an electronic offset function that compensates for thermocouple errors to maximize overall accuracy
- Handles temperatures up to >900°C (1600°F)
- Provides a user-friendly front panel that is easy to set up and operate
- Offers sleep mode to increase battery life; 1000-hour battery life typical
- Offers optional Tool Pak accessory to hang the thermometer from any metal object (with the rare earth magnet) or secure around a pipe (with hook-and-loop straps) for hands-free operation
Technical Data
Technical Specifications
Temperature accuracy
Above -100°C
J, K, T, E, and N-type: ±[0.05% + 0.3°C]1
R and S-type: ±[0.05% + 0.4°C]1
Below -100°C
J, K, E, and N-types: ±[0.20% + 0.3°C]1
T-type: ±[0.50% + 0.3°C]Temperature scale
ITS-90
Humidity (without condensation)
0% to 90%; 0°C to 35°C
0% to 70%; 0°C to 50°COvervoltage category
CSA C22.2 No. 1010.1 1992; EN 61010 Amendments 1,2
Agency approvals
CE, CSA, TÜV (pending)
Operating temperature
-10°C to 50°C
Storage temperature
-40°C to 60°C
Size (L x W x D)
173 x 86 x 38 mm
Weight
400 g
Batteries
3 AA batteries; typical 1000-hour life
APPLICATIONS
1. Laboratory & Quality Assurance (QA)
Continuous monitoring and logging of temperature in scientific experiments, calibration labs, and QA processes.
Ensures compliance with strict temperature requirements for sensitive tests and equipment.
2. Process Calibration
Used in industrial environments to calibrate temperature sensors and control systems.
Logs temperature data for later analysis and verification of process accuracy.
3. Food Safety
Monitors and records temperature in food production, storage, and transportation to ensure safety and regulatory compliance.
Ideal for HACCP procedures and cold chain verification.
4. HVAC System Testing
Measures and logs temperature across HVAC components (air handlers, ducts, refrigeration units) for diagnostics and performance tuning.
Helps identify inefficiencies or faults in heating and cooling systems.
5. Industrial Equipment Maintenance
Tracks temperature trends in motors, pumps, and other equipment to preemptively identify overheating or abnormal operation.
Supports predictive maintenance programs.
6. Research & Development
Used in R&D labs for long-term temperature profiling during product development and material testing.
Downloads
Product Brochures
➤ Technical Datasheet- Fluke 53 II Temperature
