EN Products Calibration Standards, Calibration Services Spectral Responsivity Spectral ResponsivityStandard detectors calibrated in spectral responsivity and spectral irradiance. Traceable calibrations in the wavelength range from 200 nm to 1800 nm. Less infoMore infoPhotodiode detectors calibrated in spectral responsivity. Si detectors 200 nm - 1160 nm and InGaAs detectors 700 nm - 1800 nm. Please contact our sales for more information.