The gap sensor works in a complex electromagnetism place and there is much disturbance, so it is likely to result in communication failed.

由于间隙传感器工作区域的电磁环境复杂，干扰源比较多，可能会造成通讯失败。

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Danny Corns, who lives in one of the 15 flooded houses, said it was "reassuring to a point" to learn it was a sensor that had failed rather than the pumps themselves.

BBC: Kempsey flood defence failure due to waterlogged sensor

An airborne sensor designed to seek out hostile emitters was canceled after the contractor failed to pick a plane big enough to carry the equipment.

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