The tester is a high precision skin moisture and oil content analyzer that uses advanced bioelectrical impedance analysis technology to help guide professional skin care without causing any harm. Features: - Made from high-quality, eco-friendly materials, durable, safe, and sturdy for long-term use - Measures skin moisture, oil levels, and identifies skin type - LCD display shows moisture and oil content percentages simultaneously - Simple operation: press the "SCAN" button and wait for results - Suitable for home use, travel, beauty salons, and professional skincare settings Specifications: - Item Type: Skin Analyzer - Material: ABS - Color Options: Pink, White (English Version) - Measurement Time: 3 seconds - Battery: 1 x CR2032 (not included) - Weight: Approximately 129–131g Package List: - 1 x Skin Analyzer - 1 x English Manual Instructions: 1. Press the "SCAN" button once to activate the backlight and hear the "Bi" signal sound; data will begin flashing on the LCD display. 2. Wait until the LCD data resets to zero (both displays show 00.0%), indicating the device is ready for testing. 3. Place the probe perpendicular to the skin, ensuring firm contact. After approximately 3 seconds, a "Bi" tone will sound and the LCD will display the moisture and oil content percentages. 4. Press "SCAN" at any time to restart the preparation process and perform another test. 5. The backlight will turn off 20 seconds after testing; if no action is taken within 40 seconds, the device will automatically power down.