1) the parameter which measured is comprehensive nutrition moisture rate 2) high accuracy: exactly with most monitor in the world. 3) smart and portable: a pen size, most disguises wrap can pack it 4) simple operation: only simple switch and reset when using it, shut down automatically. 5) strong guidance: show the normal value of typical part in the form of diagram, easy to nursing. 6) safe: testing head can be disinfected with alcohol while finish or using with different people, avoid to infection of skin disease The display precision 0.1% Range: 0-99.9% Size; 170x30x24 mm Weight: 58g Power supply; 3v Work current: 2.5ma Close the power failure flows 0.1a Skype:facecareyht Mutually size:500x210x360 carton box 50 pcs/box, 9.5kg