Skin moisture analyzer is a portable device that uses Bioelectric impedance analysis technology. Skin moisture analyzer immediately and automatically detects skin conditions and displays the result on LCD screen as percentage numbers. This instrument helps you monitor your skin hydration to maintain a young and healthy looking skin High precise, easy to carry, simple operation and display intuitive, easy to disinfect. A “Must Have” Skin Care Tester. 1.A skin tester allows you to distinguish skin care products’ moisture, your personal beauty adviser. 2.You can know your skin moisture condition at any time and any place through this skin tester without the need for complex machines. 3. The skin tester is super easy to use. Press the button, apply the measuring end to your skin, and withing 2 seconds you get your reading. 4.This precise skin tester helps you monitor your skin hydration to maintain a young and healthy looking skin. Item type: Digital Skin Tester A Material: Plastic Color: White Size: approx. 31.3x19.6x80.6mm Battery: 3 x button battery(included) Function: Detection of oil, moisture and softness Package Included: 1 x skin digital tester 1 x user manual Item type: Digital Skin B Material: Plastic Color: White Size: 14cm x 4cm (P x L) Charger: (included)