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Traceable calibration service: Your Link to National Standards

Bentham's dedicated Calibration Laboratory

Operating out of the dedicated calibration laboratory situated within our headquarters in Reading, UK, Bentham provide a high-accuracy light source, detector and reflectance standard calibration service.

Bentham have many years of experience in providing professional calibration services for clients across a multitude of disciplines. Utilising high-performance proprietary instruments and traceable standards, clients receive a comprehensive calibration service with a quick turn-around time.

Accurate, traceable calibration that suits you

  • Bentham’s calibration service starts with an obligation free calibration consultation
  • From receipt to return we take care of your calibration artefact
  • A fast turn-around is guaranteed
  • PTB traceable calibrations
  • An annual calibration reminder is in place to ensure you continue measuring with confidence

Light Sources (radiometric)

QuantityUnitWavelength Range
Spectral irradianceW.m-2.nm-1200nm - 3000nm
Spectral - 2500nm
Spectral radiant - 3000nm
Spectral total radiant fluxW.nm-1350nm - 2000nm

Light Sources (derived photometric quantities)

Luminous fluxlm
Luminous intensitycd
Luminance cd.m2
Colourx, y and u', v'
Correlated colour temperatureK


QuantityUnitWavelength Range
Spectral ResponsivityA.W-1200nm - 30µm


QuantityUnitWavelength Range
Diffuse Reflectance%250-2500nm
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