Microwave sensors use high frequency radio waves, that operate in a similar way to radar. They work by picking up changes in the reflected radio waves. For this reason, they are particularly useful in large areas such as warehouses, as they have the capability to more accurately detect movement and motion. The designated response can then be actioned instantly.
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Presence detection in long narrow spaces requires a specific type of solution. More general presence detectors will have a broader angle range, but will not always give the length required to sense movement that is approaching from further away.
