... Battery 5. 3colors for your options skin & beauty products: Features:Displays moisture contentLCD ... , place the probes on your skin and apply gentle pressure to ensure they ... skin.After a few seconds a "beep" will emit, indicating that the testing is complete.Remove the analyser and ... you can read the scores.Score reference:≤33%, very dry skin34~37%, dry skin38~42%, normal skin43~46%, moisture skin ...