Skin Moisture Tester 1. The display precision of model: 0.1% 2.Measuring error: ?% 3. Moisture range: 0~99.9% 4. Size: 170X30X24mm 5. Weight: 58g 6. Power supply: 3V 7. Operation electric current: 2.5mA 8.Olose the power failure flows: ≤1μA 9.Encasement size: 500X210X360 paper carton for 50pcs: 9.5kg