Solar Panel Tester Power Meter SM206 Voltage Solar Panel Multimeter Set 0.1W/m²
Model: SM206. Shift: <±1.5% /year. Battery: 9V battery ( NOT included ). Resolution: 0.1W/m², 0.1Btu/(ft²-h). It supports maximum value hold function and data hold function. Storage Temperature and Humidity: -10~50℃, <70%RH.