Features: LSI-circuit use provides high reliability and durability. 3 3/4 digital LCD display, maximum indication is 3999. Simple structure, convenient carrying and good stability. Separate UV light sensor allows to measure the UV light at an optimum position. material: plastic Color as shown Peakvalue hold function, 3 ranges to , convenient to use. Specifications: Mange range: 0~40mW/c 3 ranges: 400W/cm2;, 4000W/cm2;, 40mW/cm2; UV sensor spectrum: 290~390nm Accuracy: (4%+2 digit) Sensor structure: The UV photo diode & UV color correction filter. Sampling Time: 0.5 second Operating Temperature: -10~40C (14~104F) Operating Humidity: 0~70%Rh Battery: 1 x 9V 6F22 Battery (NOT included) Size: . 13 x 7.2 x 3cm / 5.12 x 2.83 x 1.18inch Weight: . 436g Package Contents: 1 x UV Light Meter 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.