... , double operating interface of Chinese and English ♦ Built-in lithium battery with high capacity for over 10 hours of operating life ... on-line, returning to factory is unnecessary♦ Application T-G16 Palm OTDR is mainly used to measure FTTx network, it provides ... adapter 100∼240V,50/60Hz,1.5A),Built-in Lithium battery: 4400mAh,7.4V,operating time≥10 hours33Dimensions210mm*100mm*60mmWeightabout 1kg ...