Feature1-Model: UVA365. 2-4,000 counts LCD display3-4 Ranges measuring UVA&UVB power up to 400m W/cm4-Separate sensor allows to make measurement at an optimum position5-UV sensor with light correction filter. Data hold and hold functionLow battery indicationPowered By 1x9V Battery (not inclued)SpecificationProfessional, high quality UV light meterMeasurable of UVAUV detector spectrum: 320 nm to 390 nm.Four range switchable.Display: 3 3/4 LCD display, maximum reading 39990.Measurement Range: 0-400 mW/cm2Four range selectable: 400 W, 4000 W, 40 mW, and 400mW(1000 W/cm2 = 1 mW/cm2)UV sensor spectrum: bandpass 320 nm - 390 nmAccuracy: (4% + 2dgt) Calibration under the standard UVA light & and compare; tested under the environment RF Field Strength less than 3V/M & frequency less than the 30 MHz onlySensor structure: UV photo diode & UV color correction filter.Sample Time: 2.5 /s.Over Range indication: 'OL'Operating Temperature & Humidity:-10 to 40(32-104) 0-70%RhPower Consumption: . DC 2.7 mADimension: 165x50x32mm (photo detector)160x78x43mm (meter body)material: plasticColor as shownPackage Contents:1 x Light Meter ( 9V battery is NOT included )1 x Plastic boxOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.