Data Locker DLMILCASE2 Ballistic, Hard Carrying case, Black Professionally designed and developed strictly complying with the highest safety protection standard Patented invented material with a better weather ability and a working temperature range from -40~90, anti-ultraviolet and Impact resistance case body Advanced valve design, avoid troubles of pressure differences Humanization design of the interior is convenient for setting meters and other devices Patented design of seal has a protection degree IP 67