CUV5 UV Radiometer



  • For monitoring of ‘total UV’ irradiance
  • Excellent linearity and directional response
  • Reliable under all weather conditions
  • 5 year warranty (*)

CUV5 is a general-purpose instrument for applications in meteorology, for material testing, for monitoring of lamps and for use in ageing tests in solar simulators.

The high quality dome and diffuser give optimised directional response. An optical filter provides sensitivity to combined UVA and UVB irradiance, as shown in the graph below. The photodiode generates a voltage output linearly proportional to the UV intensity.



CUV5 is not suitable for the measurement of specific parts of the UV spectrum such as UVA, UVB or UVE / UV Index. For measurement of these individual parameters our UVS Series is required.

A waterproof plug and socket cable connection facilitates easy installation. The snap-on sun shield protects the connector and allows viewing of the integrated bubble level.

The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets.

(*) This product will need to be registered by the end-user within 6 months of purchase to activate the warranty extension.

Spectral range (overall) 280 to 400 nm
Sensitivity 300 – 500 µV/W/m²
Temperature response < -0.3 %/ºC
Response time (95%) < 1 s
Non-linearity (0 to 100 W/m²) < 1 %
Maximum UVA/UVB irradiance 400 W/m²
Operational temperature range -40 to +80 °C
Directional response (up to 70°) < 5 %
Field of view 180 °