Feature: 1. Precise: Platinum probe testing for faster and more accurate results. With accurate data, you can master your skin condition in real time. 2. Historical Data Query: When this skin tester is turned on, press the power button for 3 seconds to query historical data, allowing you to have a deeper understanding of your skin condition. 3. Simple Appearance: The skin test pen adds a universal base to make it more convenient to use. Simple and elegant appearance is more attractive. 4. Easy to Operate: User friendly button design, simple and intuitive operating, no specialized knowledge required, help you get fast results. 5. Smart Display: The face skin tester shows the humidity value at the top and the oil value at the bottom, the smile face in the upper right corner represents soft skin, and the sad face in the lower right corner represents rough skin. Specification: Item Type: Facial Skin Tester Material: ABS Test Head: Platinum test head Applicable Scene: Home Battery: 2pcs AAA battery (Battery Not Included) . Package List: 1 x Base1 x Facial Skin Tester1 x Manual