This meter is a precision instrument for measuring light intensity. It is used in solar radiation measurement, solar research
Detail
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Resolution: 0.1W/m², 0.1 Btu/（ft²-h） Error range: ± (10%R+2dgts) R:readings Temperature error: ±0.38W/m² / ℃ [ ±0.12 Btu/（ft²-h）/℃] deviation at 25℃ Display: 4 1/2 LCD display, maximum displayed numerical value 19999, over load “OL” Drift: <±1.5% /year Measuring range: 0.1-1999.9 W/m², 0.1-1999.9 Btu/（ft²-h） Wave length range: 340nm--1100nm, Incidence Angle normal direction less than ±45 degree ，peak wavelength 900nm Sampling time: 2.5 times/s Operation temperature and humidity: 0°C to 40°C <80%RH Storage temperature and humidity: -10°C to 50°C <70%RH Dimensions and weight: 132（L） x 60（W） x 38 （H）mm Weight: approx. 150g Battery needed: 9V battery Battery operation life: Approx. 100 hours |
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