Features:
This meter is a precision instrument that measures the intensity of sunlight.
Two units can be selected: W/m² and Btu.
Supports maximum value hold function and data hold function.
Measure directly without adjustments, measure constantly for a long period.
Widely used for solar radiation measurement, solar energy research, meteorology, agriculture, physical and optical experiments.
That can also be used to measure the light transmission intensity of the glass to check the performance of the glass, for example, the car window performance test
Specification:
Model No.: SM206
Resolution: 0.1W/m², 0.1Btu/(ft²-h)
Range error: ±10W/m² (±3Btu/(ft²-h) or ±5% of measured value
Temperature error: ±0.38W/m²/℃±0.12Btu/(ft²-h)/℃ deviation at 25℃
Display: 3-3/4 LCD screen, max 3999
Overload screen: "OL"
Shift: Measuring range: 0.1-399.9W/m², 1-3999W/m², 0.1-399.9Btu/(ft²-h), 1-3999Btu/(ft²-h)
Sampling time: 0.25 seconds/time
Operating temperature and humidity: 0~50℃, Storage temperature and humidity: -10~60℃, Battery: 9V battery (not included)
Size: 132 x 65 x 38 mm/5.2 x 2.6 x 1.5 inches.
Weight: 325g/11.5oz (approx.)

Package List:
1 x Solar Radiation Measuring Instrument (Battery and NOT included)
1 x User Manual
1 x Packing Box