Metal shell ,waterproof ,quakeproof ,high and low temperature resistant ,strong light LED&CE,FCC ,ROHS ... Introduction:Physical: Metal structure, waterproof, durable, resistant to high and ... : Storage Capacity7200 PCSDimension176mm*Φ28mmNet Weight100gRead response<0.2SWorking temperature-20°C to 70°CWorking humidity30% to 95%Battery900mA ...