Tesla Gold Series Ultra model comes in a silver alloy case that is wall mounted. The Ultra model protects an area up to 90 meters in every direction. The Tesla Gold Series Ultra model can be used to protect you wherever there is high powered microwave radiation. This maybe emitted from cell phone tower antenna masts (within 100-250m) or nearby smart meter grids. This is ideal for commercial office spaces, factories and hospitals. For schools the Cube is recommended.
Tesla Gold Series Ultra is at least 2 times stronger than the Cube. It is recommended for use where high powered microwave radiation pervades the local vicinity.