#Renewables Make instantaneous solar irradiance measurements with one easy-to-use tool! Whether you’re surveying, installing, executing maintenance, or checking the performance of solar panels or a photovoltaic system, the Fluke IRR1-SOL Irradiance Meter gives you all 4 critical measurements you need! The FLK-IRR1-SOL Solar Irradiance Meter allows you to measure watt per square meter solar irradiation, temperature via direct contact or probe, cardinal direction, and even inclination with the til