This is a small, accurate and portable ultravioletradiation tester with a wide ran-ge of applications. It can detect ultraviolet radiation in real time, leaving the radiation nowhere to hide.Features:Compact and lightweight, easy to use and carry.LCD digital display screen, you can read the measure data clearly.There is a bracket on the back for easy placement.It is a multifunctional household daily use and travel essential goods.Functions: ultravioletlevel detection, early warning of pro-tection level, detection of ultraviolet radiation dose, outdoor sunlight detection, indoor lamps and other inspection.Suitable for the detection of ultraviolet (ultraviolet) radiation in sunlight, indoor lighting, ultraviolet l-amps and other equipment.This ultraviolet (ultraviolet) radiation detector can also be used to test and verify the pro-tection effects of anti-ultraviolet products in life, such as automobile films, curtains, protective clothing, glasses, protective articles, etc.Two power su-pply methods: you can use USB interface or battery (not included) to su-pply power.Specifications:Material: ABSColor: blackDisplay window: 2.2 inchesWorking voltage: 5VBand: 350~380nanoPower: 2 * AAA battery (not included)Detection error: less than 15%Sampling speed: less than 3 secondsDetection ran-ge: 0-22 0-3000uw / c-mStandby time: 2-3 hoursDisplay type: digital displayDisplay principle: LCD displayDetection principle: lighting analysis and detectionApplication technology: sen-sor technology applicationItem size: 127 * 54 * 18mm / 5.0 * 2.1 * 0.7inItem weight: 96g / 3.4ouncePackage size: 145 * 58 * 24mm / 5.7 * 2.3 * 0.9inPackage weight: 81g / 2.9ouncePacking List:1 * Ultraviolet Radiation Detector1 * User Manual