Measurement range: 0 to 1280 W/m² Operating temperature range: -40° to 75°C (-40° to 167°F) Accuracy: ±10 W/m2 or ±5%, whichever is greater in sunlight. Additional temperature induced error ±0.38 W/m² /°C from 25°C (0.21 W/m²/°F from 77°F) Resolution: 1.25 W/m² Drift: <±2% per year Spectral range: 300 to 1100 nm Cosine response error: ±5%, 0° to 70°; ±10%, 70° to 80° from vertical Azimuth error: ±2% error at 45° from vertical, 360° rotation Calibration: Factory recalibration available Housing: anodized aluminum housing with acrylic diffuser and o-ring seal Dimensions: 4.1 cm high x 3.2 cm diameter (1 5/8 in. x 1 1/4 in.) Approximate weight: 120 g (4 oz) Cable length: 3 m (9.8 ft) Length of Smart Sensor Network Cable: 3 m Measurement parameters: average over logging interval, user-defined sampling interval from 1 second^{Note: Light sensor bracket (M-LBA) and light sensor level (M-LLA) recommended} 

 - The CE Marking identifies this product as complying with all relevant directives in the European Union (EU)