Model SP
$169.00
Model MP
$359.00
- View Specs/Manuals
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- Spec Sheets
- Owner's Manual
- Order Sensors
Model SP
$169.00
- Order Meters
Model MP
$359.00
We currently have a 1 – 2 week lead time on all orders, but please feel free to call ahead for product availability.
ClearSky Calculator
The ClearSky Calculator is a free web-based tool that estimates the intensity of shortwave radiation under a clear sky, falling on the Earth’s surface at any time of day in any location around the world. The calculator is primarily used to determine the need for recalibration of solar radiation sensors. Radiation estimates produced by the calculator are most accurate near solar noon during summer months. In a recent study, calculator accuracy was reported to be ± 3 percent when used under optimal conditions∗; sensitivity to required input parameters was also reviewed in the study. The calculator is found at www.clearskycalculator.com.
∗ASCE Standardized Reference Evapotranspiration Equation. American Society of Civil Engineers. Reston, Virginia, USA. 2005.
