Whether you are using in-line or handheld infrared pyrometers, you need a high performance calibration standard to verify accuracy.

The BX-350portable IR calibrator features a large temperature controlled blackbody target with a diameter of 2.25" (57 mm), which offers a wide field of view area for optical variations in IR thermometers

With an emissivity of 0.95, the isothermal target can be controlled in set-point increments of 0.1° from 50°C to 350°C.
For even higher precision, a contact calibration well is located directly behind the blackbody surface.
Using an optional digital RTD thermometer (Optional Extra) and calibrated secondary probe, accuracies of ±0.1°C can be achieved.

The BX-350 Portable IR calibrator is used for calibrating long distance Infrared Thermometers.

  • Easily certify IR pyrometers to 350°C/622°F
  • Large 2.25" (57 mm) blackbody target
  • RTD (Resistance Thermometer detector) reference well for high precision (Optional Extra)


  • BX-350 Infrared Calibrator
  • Power Cord
  • User’s Guide
  • Calibration Report


Available Downloads


Temperature Range: 50ºC ~ 350ºC/ 122ºF ~ 662ºF
Accuracy: ±0.5ºC @ 100ºC/ ±1.0ºF @ 212ºF
±1.2ºC @ 350ºC/ ±2.4ºF @ 662ºF
Stability: ±0.1ºC @ 100ºC/ ±0.2ºF @ 212ºF
±0.2ºC @ 350ºC/ ±0.4ºF @ 662ºF
Target size: 57mm (2.25")
Target Emissivity: 0.95
Resolution: 0.1ºC/ºF
Heating Time: 30 minutes to max
Cooling Time: 30 minutes max to 100ºC
Power: 230 VAC (±10%), 1.5 A
SKU BX-350
Model # BX-350
Brand CEM
Shipping Weight 3.2000kg
Shipping Width 0.220m
Shipping Height 0.032m
Shipping Length 0.300m
3 Years Return to Base Warranty