Precision Sunlight Radiation Testing: This solar power meter offers high-precision measurements with a 4-1/2 digital display, ensuring accurate and reliable sunlight radiation testing, The light meter is mainly used to measure the transmittance of glass, Verify the performance of the glass Versatile Unit Selection: The light meter selectable units allow for easy switching between W/m² and Btu/(ft²-h), catering to diverse data reading requirements in applications such as agriculture, meteorology, and solar energy studies Data Retention and Record Function: Equipped with a data retention feature, this Digital Solar Energy Meter allows users to save critical data seamlessly. The "HOLD" button facilitates maximum retention for easy recording, user-friendly data comparison, and experimental research Wide Measurement Range with User-Friendly Design: Sunlight Radiation Tester With a broad measurement range of [0.1~1999.9W/m² / 0.1~1999.9Btu/(ft²-h)], this device is designed for versatility in measuring various sunlight intensities while featuring a low battery indicator and a user-friendly data HOLD function LCD Display & Standard Parameters: Featuring a large LCD display with high resolution (3-3/4 LCD display), this solar power meter provides precise measurements in both W/m2 and Btu units while being portable (132 * 65 * 38mm / 5.2 * 2.6 * 1) without compromising on functionality or accuracy › See more product details