1.实现节省空间的薄型5.9mm 
2.宽8mm和小型的检测距离都是2.5mm
3.采用防滑转凸部，可用1根螺栓进行简单的安装，并且不要安装架.
4.可以从三个方向观察指示灯.检查动作状态方便.
5.适应各种用途的丰富机种.
另有圆柱形两线接近开关，
常用型号APM-D3A1,APM-A3B1 APM-B3A1
APM-A3A1F APM-A3B1 APM-A3B1F APM-A3D1 APM-A3D1F APM-A3E1 APM-A3E1F APM-A3J1 APM-A3K1 APM-B3A1 APM-B3A1-03 APM-B3A1-05 APM-B3A1F APM-B3A1F-03 APM-B3A1F-05 APM-B3B1 APM-B3B1F APM-B3D1 APM-B3D1-03 APM-B3D1F APM-B3E1 APM-B3E1-03 APM-B3E1F APM-B3J1 APM-B3J1-03 APM-B3K1 APM-B3K1-02  APM-B3K1-03 APM-B3K1F APM-C3A1 APM-C3A1F APM-C3B1 APM-C3B1-03 APM-C3B1F APM-C3D1 APM-C3D1F APM-C3E1 APM-C3E1F APM-C3J1 APM-C3J1-S  APM-C3K1 APM-D3A1 APM-D3A1-03  APM-D3A1-05 APM-D3A1F APM-D3A1F-S  APM-D3A1-S  APM-D3A2 APM-D3B1 APM-D3B1-03 APM-D3B1F APM-D3B1-S APM-D3B2 APM-D3D1  APM-D3D1F  APM-D3E1 APM-D3E1F APM-D3J1 APM-D3J1-03 APM-D3J1-S APM-D3K1  APM-D3K1-03  APM-D3K1F  APM-D3K1-S