SPECIFICATIONSBrand Name: NONECertification: CECommodity Quality Certification: ceHigh-concerned chemical: noneManufacturing Process: Machine MadeMaterial: PlasticMedical supervision required?: NNumber of Pieces: One UnitOrigin: Mainland ChinaPower Source: USB Charger,USB ChargerStandard Voltage: 220 V,100V,110 V,240VVoltage: Below-50V AC (Safety Extra-Low Voltage AC, SELV AC)Skin Moisture and Oil Tester Pen, Your Personal Skincare Assistant!This skin moisture and oil tester is compact, portable, and easy to use. With just a gentle press, it quickly and accurately measures your skin's moisture and oil content, helping you understand real condition of your skin and create a more precise skincare routine.Product Features:Accurate Measurement: With advanced sensors, it quickly accurately measures your skin's moisture and oil content, and the data is displayed directly.Compact and Portable: The pen-shaped design is lightweight and to carry, allowing you to test your skin condition anytime and anywhere.Easy to Use: One-button operation, no complicated settings, and easy to learnWide Application: Suitable for all skin types, and can be used by both men and women.Recommended Reasons:S goodbye to blind skincare and understand your skin's needs scientifically.Track the effects of skincare and witness the improvement process of your skin.Portable design, always keep an eye on your skin condition.Applicable People:Beauty-conscious individuals who care about skin healthPeople who want to improve their skin problemsThose who hope to practice scientific skincareWarm Tips:Please do not immerse tester pen in water.Please do not use it in extreme temperature environments.Please clean the probe of the tester pen regularly to ensure measurement.With this skin moisture and oil tester pen, you can easily grasp your skin condition and start a new chapter in scientific skincare