• AccuracyTypically within ±10W / m2 { ± 3BTU / (ft 2*h)} or ± 5%, whichever is greater in sunlight; Additional temperature induced error ± 0.38 W / m2 / °C {±0.12BTU/(ft 2*h)/°C} from 25°C
• AccuracyTypically within ±10W / m2 { ± 3BTU / (ft 2*h)} or ± 5%, whichever is greater in sunlight; Additional temperature induced error ± 0.38 W / m2 / °C {±0.12BTU/(ft 2*h)/°C} from 25°C
• Display3½ digits LCD with maximum reading 1999
• Range1999W/m2, 634 BTU (ft2*h) .
• Angular AccuracyCosine corrected <5% for angles <60°
• Sampling timeApprox. 0.25 second
• Accuracy< ±3/ year
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