... mm stand by current: <=0.02mA multifunction digital tools-glossmeterIntelligence series gloss meter is widely used in metal,no-metallic,stone,paint,furniture ... date and locked . After you press the OK button in short time ,will recovery measurement and can be used again ... GS)gauge extent9×18(mm)degree of stability≤±1.0zero errorautomatic correctiondisplayed value error≤±1.0(GS)power supplyDC 4.8V, No ...