Gigahertz-Optik Logo

Quick Contact

Gigahertz Optik GmbH (Headquarter)
Phone: +49 (0)8193-93700-0

Gigahertz-Optik, Inc. (US office)
Phone: +1-978-462-1818


You can add products to the watchlist and compare them with one another or send us an inquiry. There are watchlist symbols on product pages and product tables for this purpose.

This Product is discontinued, please refer to the Alternatives shown below under Similar Products or contact us directly.

Alternative Products for this discontinued product:

BTS256-LED Tester
Compact BiTec Spectroradiometer LED Tester for the Measurement of Total Luminous Flux of Single VIS and NIR LEDs


Detector head for use in UV radiation protection measurements

  • UV-A and UV-BC actinic ERYTHEMA irradiance
  • suited for use with X1 type optometers
  • calibration certificate
The typical symptom of UV erythema is acute skin inflammation caused by UV radiation (sunburn) which may be linked to skin cancer over prolonged exposure times. The XD-9509 detector permits direct measurement of the UV Erythemal effective irradiance by means of it’s spectral responsivity adaptation to the nominal CIE Erythemal spectral function. It’s two sensor design offers best possible isolation between the UV-Aeff and UV-BCeff sensors and also provides the best spectral match to Erythemal actinic spectral function.

Cosine Corrected Field of View

The angular response of the XD-9509-4 detector is cosine corrected.

Traceable calibration

Calibration of the detector responsivity is performed by the Gigahertz-Optik GmbH calibration laboratory for optical radiation measurements quantities. As with all light detectors supplied by Gigahertz-Optik calibration of absolute detector responsivity as well as detector individual measured relative spectral responsivity data is included.

Recommended Optometer

XD-9509-4 - Typical Spectral Responsivity

XD-9509-4 - Typical Spectral Responsivity

Similar Products

Detector for UV Hazard Measurements of Solaria (Sun Beds) and other Tanning Lamps in Accordance to UVSV
Optometer for the measurement of UV and Blue-light hazard of artificial radiation source.
Broadband radiometer for radiation protection measurements of UV radiation devices

Product Categories