Feature 1-Model: UVA365. 2-4,000 counts LCD display 3-4 Ranges measuring UVA&UVB power up to 400m W/cm 4-Separate sensor allows user to make measurement at an optimum position 5-UV sensor with light correction filter. Data hold and hold function Low battery indication Powered By 1x9V Battery (not inclued) Specification Professional, high quality UV light meter Measurable of UVA UV detector spectrum: 320 nm to 390 nm. Four range selection switchable. Display: 3 3/4 LCD display, maximum reading 39990. Measurement Range: 0-400 mW/cm2 Four range selectable: 400 W, 4000 W, 40 mW, and 400mW (1000 W/cm2 = 1 mW/cm2) UV sensor spectrum: bandpass 320 nm - 390 nm Accuracy: (4% + 2dgt) Calibration under the standard UVA light & and compare; Special tested under the environment RF Field Strength less than 3V/M & frequency less than the 30 MHz only Sensor structure: exclusive UV photo diode & UV color correction filter. Sample Time: 2.5 times/s. Over Range indication: 'OL' Operating Temperature & Humidity: -10 to 40(32-104) 0-70%Rh Power Consumption: . DC 2.7 mA Dimension: 165x50x32mm (photo detector) 160x78x43mm (meter body) material: plastic Color as shown Package Contents: 1 x Light Meter ( 9V battery is NOT included ) 1 x Plastic box Only 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.