Check the listing for details. Lux Light Meter Luminometer 0.01-999900Lux 0.001-92927Fc Data Logger RS232. Condition: New. Listed at 346.32 USD. Note: we'll ship this item via Epacket to US, usually the delivery time is about 3 weeks; For other countries, we'll ship it via registered air mail of Post, usually the delivery time is about 40-50 days. If you want express mail service, please contact us for extra postage in advance. Features:Dual Display, 4-digit LCD reading.Spectral Sensitivity close to CIE photopic Curve.Measuring Levels Ranging 0.01 to 999900 Lux,0.001 to 92927 fc, Autoranging 5 step.Accurate and Instant response.Integral illuminance measurement.Luminous intensity measurement.Data Hold function.Data memory and read function.Data logger function.Reference value setting for relative or percentage deviation measurement.Ripple measurement for STRAY + LIGHT function.Time-hold function.Point - average function.Comparator function.Auto power off function.RS232 Interface.CNS 5119 Class Ⅱ. Specifications: DisplayDual display 4 digit LCD read out.Measuring Range99.99, 999.9, 9999, 99990, 999900 Lux 9.292, 92.92, 929.2, 9292, 92927 fc Auto rangeing (5 step) (1 fc = 10.76 Lux)Overrange DisplayOL is displayedResolution0.01 Lux, 0.001 fcAccuracy+- 3% rdg ± 5dgt (Calibrated to standard incandescent lamp, 2856 Κ )CIE photopic f ' 1