This is a small, accurate and portable ultraviolet radiation tester with a wide range of applications. It can detect ultraviolet radiation in real time, leaving the radiation nowhere to hide. 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: ultraviolet level detection, early warning of protection 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 lamps and other equipment This ultraviolet (ultraviolet) radiation detector can also be used to test and verify the protection effects of anti-ultraviolet products in life, such as automobile films, curtains, protective clothing, glasses, protective articles, etc. Two power supply methods: you can use USB interface or battery (not included) to supply power Specifications: Material: ABS Display window: 2.2 inches Working voltage: 5V Band: 350~380nano Power: 2 * AAA battery (not included) Detection error: less than 15% Sampling speed: less than 3 seconds Detection range: 0-22 0-3000uw / cm² Standby time: 2-3 hours Display type: digital display Display principle: LCD display Detection principle: lighting analysis and detection Application technology: sensor technology application Item size: 127 * 54 * 18mm / 5.0 * 2.1 * 0.7in Item weight: 96g / 3.4ounce