Class A

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  • SR30

    SR30

    Using Recirculating Ventilation and Heating (RVH™) technology, SR30 outperforms pyranometers equipped with traditional ventilation systems.
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  • SR20

    SR20 is a pyranometer of the highest category in the ISO 9060 classification system: secondary standard.
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  • SR22

    SR22 is a solar radiation sensor of the highest category in the ISO 9060 classification system: secondary standard.

  • SR25

    SR25 needs very low power; it only consumes 1.5 W compared to the usual 10 W for ventilation. The low thermal offsets make SR25 very suitable for measuring diffuse radiation.