Fluke 54-2 B Dual Input Digital Thermometer
The Fluke 54-2 B is a high-precision dual input digital thermometer designed for demanding industrial environments. With laboratory accuracy of 0.05% + 0.3°C and the ability to log up to 500 data points, it provides reliable temperature measurements for critical applications. This thermometer supports J, K, T, and E thermocouple types, offering versatility for a wide range of temperature sensing needs.
Key Features & Highlights
- Dual Input: Simultaneously measure two temperature points with independent channels.
- Data Logging: Stores up to 500 data points with relative time stamps for MIN, MAX, and AVG values.
- High Accuracy: Laboratory-grade accuracy of 0.05% + 0.3°C ensures precise readings.
- Thermocouple Compatibility: Works with J, K, T, and E type thermocouples, covering most industrial needs.
- Electronic Offset: Compensates for thermocouple errors to maximize overall accuracy.
- Multiple Readouts: Displays temperature in °C, °F, or Kelvin.
- Rugged Design: Splash and dust resistant case with impact-absorbing holster for durability.
- Long Battery Life: Sleep mode extends battery life to typically 1000 hours.
- USB Connectivity: Export data to FlukeView Forms® software for analysis and graphing.
- Hands-Free Operation: Optional ToolPak accessory allows mounting on metal surfaces or pipes.
- 3-Year Warranty: Backed by Fluke’s reliability and support.
Applications
The Fluke 54-2 B is ideal for checking temperatures in motors, insulation, breakers, pipes, corroded connections, liquids, and wires. It is widely used in maintenance, HVAC, electrical troubleshooting, and quality assurance across industrial sectors.





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