The Unico Didymium Wavelength Calibration Filter (#S-90-9116) is a wavelength accuracy filter that is durable, easy to use, and the perfect enhancement to your spectroscope. The factory certified filter is made to work with all Unico spectrophotometers.

Warranty: 1 Year.

The filter is mounted in the black anodized aluminum holders, and has the same external dimensions as standard 10 mm square cuvettes. It is used to calibrate wavelength accuracy, various transmittance or absorbance values, as well as the stray light of the instrument.

Unico Didymium Wavelength Calibration Filter Specifications:

• Weight: 3 lbs.
• Shipping Weight: 6 lbs.

Unico Didymium Wavelength Calibration Filter Literature:

Unico S2150 Series Visible Spectrophotometer Brochure