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  • Fluke Calibration 4181-256 Infrared Calibrator

Fluke Calibration 4181-256 Infrared Calibrator


Availability: Normally in Stock / Short Lead Time

Infrared Calibrator, 35 degC - 500 degC, 152 mm (6"), 220 V / 50/60 Hz

The Fluke 4181 calibrator is designed for portability and ease of operation. Through proper use the instrument will provide continued accurate calibration of IR temperature measurement devices.


Infrared Calibrator, 35 degC - 500 degC, 152 mm (6"), 220 V / 50/60 Hz

The Fluke 4181 Precision Infrared Calibrators for infrared thermometers and thermal imagers is fast, accurate, and easy to use. It comes with an accredited calibration from one of the world’s most trusted temperature calibration laboratories, sample calibration procedures for Fluke thermometers built right in and everything you need to get started making high-quality infrared thermometer calibrations.

The Fluke 4181 may be used as a portable instrument or benchtop temperature calibrator for calibrating point IR thermometers. The 4181 is small enough to use in the field, and accurate enough to use in the lab.

Unique patent pending safety features make the instruments the safest IR calibrators available. The Block Temperature Indicator (Patent Pending) shows the user when the target temperature is above 50°C letting the user know when it is safe to place the target cover on the instrument and/or move it to a different location. The indicator remains illuminated when the instrument is energised and above 50°C, but with mains power removed, it will ??ash until the target temperature drops below 50°C.

Key Features:

  • Rapid heating and cooling.
  • RS-232 interface capability.
  • Eight set-point memory.
  • Adjustable readout in °C or °F.
  • Adjustable Emissivity.
  • Calibrated radiometrically for meaningful, consistent results.
  • Accurate, reliable performance from –15 °C to 500 °C.
  • Intuitive, easy-to-read display that indicates when temperature is stable.

Fluke 4181 Specifications:

  • Temperature Range: 35°C to 500°C.
  • Heating Time: 20 min: 35°C to 500°C.
  • Cooling Time: 100 min: 500°C to 35°C; 40 min: 500°C to 100°C.
  • Stabilisation Time: 10 minutes.
  • Target diameter: 152.4mm (6 in).
  • Computer interface: RS-232.
  • Power: 230V ac (+/- 10%), 5A, 50/60Hz, 1000W.
  • Dimensions: 356 mm x 241 mm x 216 mm (14 in x 9.5 in x 8.5 in).
  • Weight: 9.5 kg (21 lb).
  • Fluke 4181-256 Warranty: One year.


  • 4181 IR Calibrator
  • Report of Calibration (NVLAP Accredited)
  • Power Cord
  • User's Guide
  • Documentation CD
  • Target Cover
  • Serial Cable