The SEM228T-B Class B Thermoelectric Pyrgeometers is a shortwave total radiation sensor used for solar radiation observation. It is a Class-I total radiation sensor conforming to the latest ISO 9060 and WMO technical standards.
The SEM228T-B total radiation sensor measures solar radiation received by a horizontal plane from a solid angle of 2π steradian degrees (hemispherical direction), measured in W/m². The SEM228T-B operates in a completely passive mode, utilizing a thermopile sensor to generate an output voltage proportional to the incident radiation flux. The use of two spherical glass domes reduces measurement errors, particularly thermal offset, resulting in high measurement accuracy.
Application
Used for meteorological observation, building physics, climate, and solar energy harvesting experiments. A common application is as part of a weather station to measure outdoor solar radiation.
