Description
Aspirated radiation shield 43502 for maximum sensor protection
RM Young’s 43502 aspirated radiation shield provides maximum sensor protection against incoming shortwave and outgoing longwave radiation
The shield is a low-cost, conservatively rated shield that protects temperature and relative humidity sensors while providing a continuous ambient airflow to reduce errors from solar radiation and precipitation, especially in low-wind applications.
Featuring specially formulated materials for high reflectivity, low thermal conductivity and maximum weather resistance, the shield utilizes a triple intake tube and multiple canopy screens.
The small shield size reduces the surface area exposed to incoming radiation during the day. This significantly reduces the amount of heat that must be flushed away from the intake pipes. Errors from outgoing radiation at night are reduced accordingly. A continuous DC fan provides a constant flow of ambient air over the sensor. A tachometer output can be used to monitor fan operation.