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TOCON E2 (UV-Index, TO-5)

Item Description

The TOCON E2 is a UV-Index filtered sensor containing a high performance SiC UV photodiode and an amplifier that outputs 0-5 V, all in a TO-5 package.  The TOCON E2  is used for UV-Index measurement with very small error (<+/- 3%).  The spectral response is compliant to CIE087 / DIN5050.

Also consider an optional TOCON Starter Kit. The TOCON Starter Kit is a very convenient and easy way to set up your TOCON, provide supply voltage to the sensor and amplifier and to readout the 0-5 V output signal. The kit contains a socket for your TOCON, 9V battery and battery connector and easy output connection via banana plugs to your voltmeter.

Information about the UV-Index (UVI)

The UV-Index is an international standard measurement of how strong the ultraviolet (UV) radiation from the sun is at a particular place on a particular day. It is a scale primarily used in daily forecasts aimed at the general public. The UV-Index is calculated by integrating the sun’s UV spectrum multiplied with the Erythema action curve (see spectral responsivity). That integral is divided by 25 mW/m2 to generate a convenient index value, which becomes essentially a scale of 0 to 10. The Erythema action curve is a wavelength resolved measure of the sunburn danger. It is maximized at 297 nm (UVB) and then strongly decreases towards UVA radiation.The Erythema action curve is a wavelength resolved measure of the sunburn danger.

See our UV Index video.

Product Technical Specs

  • Summary product specifications are below
  • View and download the detailed product sheet at the Download PDF tab
  • Please contact us with any questions for or assistance via our contact request page or at 617-566-3821
Spectral response spectral response according to CIE087
Irradiance 0 - 30 UVI
Output 0-5 V
Supply voltage 2.5 - 5 V