1. Induct the current UV intensity in 3 seconds
2. LCD display；Material: ABS plastic
3. UV tester, display the UV intensity by 1-8 levels：1-3 means low content；
4-6 means middle level；7-8 means high content,skin will be suntanned easily。
4. Temperature display ( ℃/℉)
5．Super-thin (4.5mm) card design, portab