Feature: 1. Skin moisture detector. This device helps monitor skin health by detecting moisture, oil, and elasticity levels, and estimating skin age. It can also detect the presence of fluorescent agents. 2. Is your skin within the normal range? Facial moisture levels vary between winter and summer. When skin is dehydrated, the screen displays a red light. Normal moisture shows a yellow light, and optimal moisture appears as green. 3. Your personal skin assessment tool. Gain deeper insights into your skin condition to help select suitable skincare products. 4. Support for hydrated skin. The effectiveness of facial masks and moisturizing routines can be clearly monitored, allowing skincare to be based on data rather than sensation. 5. Fluorescent agent detection. If a product contains fluorescent agents, a blue glow will appear, indicating potential concern. Products without fluorescent agents will not emit a blue glow. Item type: Skin moisture detector Voltage: 3.7V 10mA Battery capacity: 3.7V/300mAh Charging time: 40 minutes Usage time: Up to 180 minutes of continuous use Operating temperature: 5-40°C, relative humidity 70% Memory function: Stores 8 sets of test records. Press the "O" button briefly to view historical data. Intelligent chip: Accurately measures water, oil, elasticity, and skin age at different locations, accounting for environmental and weather influences. High-precision probe: Features efficient conduction, low resistance, and an elastic design for comfortable testing. Compact and portable: Easy to carry for on-the-go skin monitoring, helping you stay aware of your skin's condition and potential exposure to fluorescent agents. Material: Acrylic fiber Color: White Package Contents: 1 x Skin Tester 1 x Data Cable 1 x User Manual in English Note: The package includes only the items listed above. Other items are not included. Lighting and display settings may cause slight color variations between the image and the actual product. Measurement error tolerance: +/- 1-3 cm.