Supergoodsales Solar Power Meter SM206 Digital Sunlight Sun Light

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1. This meter is a precision instrument measuring the intensity of sunlight.
2. There are two units that can be selected: W/m² and Btu.
3. It supports maximum value hold function and data hold function.
4. Measure directly without adjustment steadily measure for a long period.
5. Widely used for solar radiation measurement solar energy research meteorology agriculture physical and optical experiments.

Specification:
Features:
This meter is a precision instrument measuring the intensity of sunlight.
There are two units that can be selected: W/m² and Btu.
It supports maximum value hold function and data hold function.
Measure directly without adjustment steadily measure for a long period.
Widely used for solar radiation measurement solar energy research meteorology agriculture physical and optical experiments.
It can also be used to measure the light transmission intensity of glass to verify the performance of the glass for example car window performance test.
Specification:
Model: SM206
Resolution: 0.1W/m² 0.1Btu/(ft²-h)
Range Error: ± (10%R+2dgts)R: readings
Temperature Error: ±0.38W/m²/℃[±0.12Btu/(ft²-h)/℃] deviation at 25°C 
Display: 4-1/2 LCD display maximum display numerical value 19999
Overload Display: OL
Shift:
Measurement Range: 0.1-1999.9W/m² 0.1-1999.9Btu/(ft²-h)
Sampling Time: 2.5 seconds/time
Operating Temperature and Humidity: 0~40℃ 
Storage Temperature and Humidity: -10~50℃
Battery: 9V battery (NOT included)
Size: Approx. 132 x 60 x 38mm / 5.2 x 2.4 x 1.5in
Weight: 325g / 11.5oz (approx.)
Package list:
1 * Solar Radiation Measuring Instrument (battery is NOT included)
1 * User Manual
1 * Packing Box