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. Skin moisture status indication. The facial moisture normal range varies between winter and summer. When skin is dehydrated, the screen displays a red light. Normal moisture shows as yellow, and optimal moisture appears as green. 3. Personal skin analysis. Gain deeper insight 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 assessed, enabling more informed skincare decisions. 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 up to 8 sets of test records. Press the "O" button briefly to cycle through historical data. Intelligent chip: Accurately measures water, oil, elasticity, and skin age at different facial areas, accounting for environmental and weather-related 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 skin health 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 accessories or products are not included. Light reflection and differences in display screens may cause slight variations between the product color in images and the actual item. Measurement may vary by +/- 1–3 cm due to manual measurement.