The Skin Sensor is designed to test the skin moisture, skin oil and skin type, and also can be used to detect the fluorescer. Features: 1. Made of high quality and eco-friendly material, durable, safe and sturdy to use. 2. Can be used to test the skin moisture, skin oil and skin type, and also can be used to detect the fluorescer. 3. With 10 groups memory function, it is convenient for you to consult the value that you have test the last time. 4. With the warn of skin moisture shortage, keeps you aware of your current skin condition. 5. Highly sensitive probe offers more precision of the testing result. 6. Stylish and portable with compact pen-type design, good for home, traveling, beauty salon and professional skin hospital. Specification: Condition: 100% Brand New Item Type: Skin Tester Material: ABS Color: Pink Size: approx. 12.3 * 3.5 * 2.5cm / 4.8 * 1.3 * 0.98inch Weight: Approx. 172g / 6.1oz Function: can be used to test the skin moisture, skin oil and skin type, and also can be used to detect the fluorescer. Package list: 1 x Skin Tester 1 x USB Cable 1 x Manual The reference value of skin moisture: (the normal moisture value should be greater than 32, or else the tester will emit red light to remind moisturizing) Forehead: normal value is 35% -60% Eye: normal value is 50% - 60% Face: normal value is 35% - 60% Hand: normal value is 40% - 65% The reference value of skin oil: The moist skin: 16% - 22% Normal skin: 23% - 33% Oily skin: 34% - 63%?Home and Salon Use: Stylish and portable with compact pen-type design, good for home, traveling, beauty salon and professional skin hospital. ?The reference moisture: Forehead: normal value is 35% -60%; Eye: normal value is 50% - 60%; Face: normal value is 35% - 60%; Hand: normal value is 40% - 65%.? The reference value of skin oil:The moist skin: 16% - 22%; Normal skin: 23% - 33%; Oily skin: 34% - 63%. ?Easy to Use: This tester is easy to use, just turn it on, touch the probe on your skin and you will see the skin condition with real data on its easy-to-read LCD display. It can be used at night. Shows the percentage of moisture and oil content and also your skin elasticity simultaneously. ?High Precision: Highly sensitive probe with high accuracy, monitor the moisture and oil of your skin accurately. With fluorescent test function, can help you stay away from the danger of fluorescence to your skin. Made of high quality and eco-friendly material, durable, safe and sturdy to use. ?Moisture Shortage Warning: With the warn of skin moisture shortage with red light, keeps you aware of your current skin condition. The skin care tester has 10 groups memory function, which is convenient for you to consult the value that you have test the last time, analying the skin precisely. The skin tester has LCD disply, easy to read. Your Skin Care Monitor. ?Application: The skin tester meter uses bio-elastic impedance analysis technology. Its main function is the measurement of skin moisture and oillevels, it can detect the fluorescence of the facial mask in order to maintain youthful and healthy skin. The skin moisture dector can also help you find the skincare process and have better skin care method.