Round mounting holes (not slots) in the sensor housing avoid incorrect mounting distances or movement through impact or vibration which otherwise may require maintenance.
传感器外壳上的圆形安装孔（非槽形）可避免由于错误的安装距离或运动而导致的碰撞或震动引起的维修。
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The durable design of our hole punch Cylinder enables you to punch millions of maintenance-free holes.