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The direct sunlight from the sun is judged by the bimetal contact to determine the threshold and outputs the contact.
There are solar cell type and thermoelectric pile type solar radiation meters. Please choose according to your application. We also offer radiation balance meters, ultraviolet meters, and sunshine meters.
This is a solar-powered sunshine meter used by the Meteorological Agency, government offices, and universities to measure sunlight duration.
The solar cell-based sunshine meter uses a silicon photodiode as the light receiving element. This device is a transmitter that outputs direct solar radiation of 0.12 kW·m⁻² as 20 mV (DC) based on the regulations of the WMO (World Meteorological Organization).
