Fluke 50D Thermometer
The Fluke 50D Digital Thermometer is a single-input digital thermometer with a wide temperature range, fast response, and laboratory accuracy. It accepts J, K, and T-type thermocouples, and measures from -150 °C to 1372 °C (-238 °F to 2501 °F).
- Model
- Fluke 50D
- Calibration
- Available on request
- Price
- $100
- RFQ ref
- 50D
This unit
The Fluke 50D is a dual-input digital thermometer that measures temperature from J-type and K-type thermocouples with 0.1 °C (0.2 °F) resolution across its full operating range. Engineered for industrial, laboratory, and field applications, it delivers K-type accuracy of 0.1% + 0.7 °C (1.3 °F) and J-type accuracy of 0.1% + 0.8 °C (1.4 °F) under standard ambient conditions. The instrument simultaneously displays readings from two thermocouple inputs, calculates differential temperature (T1-T2), and logs minimum and maximum values - making it essential for process monitoring, thermal diagnostics, and comparative temperature analysis.
Technical Specifications
- Temperature Range: K-type: −200 °C to 1370 °C (−328 °F to 2498 °F); J-type: −200 °C to 760 °C (−328 °F to 1400 °F)
- Accuracy: K-type: 0.1% + 0.7 °C (1.3 °F); J-type: 0.1% + 0.8 °C (1.4 °F)
- Display Resolution: 0.1 °C (0.2 °F)
- Thermocouple Inputs: Dual J and K-type connectors
- Battery: 9 V; 800 hours typical life
- Dimensions: 16.6 cm L × 7.5 cm W × 2.8 cm D (6.6 in L × 3.0 in W × 1.1 in D)
- Weight: 280 g (10 oz)
- Certifications: CE, CSA
Key Features
- Simultaneous dual-input measurement and independent display of T1 and T2
- Differential temperature mode (T1−T2) for direct comparison between two points
- SCAN mode cycles through T1, T2, and differential readings automatically
- MIN/MAX recording captures peak and valley temperatures during measurement sessions
- HOLD function freezes display for stable reading capture
- Offset adjustment compensates for thermocouple error sources
- Selectable Celsius or Fahrenheit readout
- Yellow protective holster included
Typical Applications
- HVAC and thermal system commissioning
- Manufacturing process temperature monitoring
- Equipment performance diagnostics
- Laboratory thermal testing and validation
- Field service and maintenance operations
Compatibility & Integration
- Compatible with standard J-type and K-type thermocouples
- Supplied with two K-type bead probe thermocouples and C70Y holster
- Portable form factor enables one-handed operation in confined spaces
Fluke 50D — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Fluke 50D. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Fluke 50D price
This Fluke 50D is listed at $100. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Fluke 50D calibration cost
NIST-traceable calibration for the Fluke 50D is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
