Superior Material:Made of high quality and environmentally friendly material, durable, safe and solid to use.High Technology:Real biosensing technology is adopted for measuring skin moisture content in a more accurate way.Smart and Practical Function:A perfect tool for skin humidity measurement, then you can know your skin state anytime you want.Handy Size:Stylish and portable in compact pen design, good for the home, travel, beauty salon and professional skin hospital.Easy Operation:Just open the lid and press the tester button for instant measurement, two pieces AAA batteries for convenient power supply(not included).Large LCD Display:Design with LCD backlight display, showing the result shortly after testing, the precision data can be read then you can take actions to care for facial skin.How to Use:1.For more accurate measuring result, please test on skin area without sweat, hair, or makeup under the indoor temperature.2.Unplug the lid.3.Press the ON/OFF button, then light on.4.After the beepprompt tone, the display indicates stable 00.0%.5.Hold the probe vertically to the testing area, closely attaching the probe to skin(note: totally press the probe into the shell). After the beep, it firstly displays the skin moisture value, then flickers twice to display the skin oil value.6.Press 0 button for continuous test, the following steps are as step 4/5 as above.7.Backlight off 5s after the test, 30s no operation auto power off.8.Please wipe off probe with soft cloth with alcohol.Name:Digital Skin AnalyzerDisplay accuracy: 0.1%Test error: 1%Using temperature: 5-40Relative humidity: under 70%Measurement scope: 0-99.9%size:17.5x3x2.4cmMaterial:ABScolour:whitePackage Contents:1 * Skin testerOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.