Benning SUN 2. Suitable for solar installers for initial commissioning, repeat testing, troubleshooting, economic efficiency checks, photovoltaic experts and service and maintenance teams. Irradiation and temperature measuring device. Ideal for planning and supporting commissioning and repeat testing of grid-connected PV systems in accordance with VDE 0126-23, DIN EN 62446 and for testing thermal solar systems/solar thermal energy. Graphic display. Measurements: Solar irradiation/irradiance in W/m2. PV module and ambient temperature. Digital compass for determining the direction. Inclinometer for determining the roof/module inclination. Special features: Calibrated photovoltaic reference cell for precise measurement of solar irradiation. 2-channel temperature sensor for PV module and ambient temperature. Data logger with real-time clock and adjustable measurement interval, 11 min. to 60 min., for storing 5000 data sets, such as irradiance, module/ambient temperature and date/time stamp. Radio connection, WirelessSunLink, approx. 30 m range in open areas, to optional PV installation testers. USB-A interface. Download software for creating test reports in MS Excel. Includes case, rubber protective frame, module and ambient temperature sensor, 2 x 1.5 V Mignon AA LR6 batteries, USB cable, download software.