The FLK-IRR2-BT is a handheld solar irradiance meter designed to simplify the installation, commissioning, and troubleshooting of photovoltaic arrays. It measures solar irradiance up to 1400 W/m², temperature from -30 °C to 100 °C, and both inclination and compass direction using integrated sensors. The meter wirelessly communicates recorded irradiance and temperature measurements to the Fluke SMFT-1000 Solar Multifunction PV Analyzer, enabling instant determination of the I-V curve of panels under test. This integrated tool is ideal for PV system design, surveying, and performance verification, providing solar installers and technicians with critical measurements in a single, rugged device.