SM206 Digital Solar Power Energy Meter Sun Light Radiation Tester W/m² and Btu
Model: SM206. There are two units that can be selected: W/m² and Btu. Resolution: 0.1W/m², 0.1Btu/(ft²-h). Temperature Error: ±0.38W/m²/℃[±0.12Btu/(ft²-h)/℃] deviation at 25°C. Storage Temperature and Humidity: -10~50℃, <70%RH.