SMC D-A54 Auto Switch, Reed, General Purpose: Industrial Air Cylinder Accessories: Amazon.com: Industrial & Scientific
SMC D-M9B Auto Switch, Solid State, General Purpose: Industrial Air Cylinder Accessories: Amazon.com: Industrial & Scientific
Amazon.com: Hicello SMC Type DA73 Air Cylinder Magnetic Reed Switch, Proximity Pneumatic Sensor LED Indicator Compatible for CDQ2B/CD85N/CXV/CXT/CDQM/CRA1 : Industrial & Scientific
SMC CORPORATION D-M9N Solid State Sensor, NPN Out, Direct Mount, 4.5 to 28V, Red LED, D-M9 Series: Electronic Components: Amazon.com: Industrial & Scientific
Amazon.com: Baomain Pneumatic Air Cylinder Magnetic Reed Switch Sensor w 1.8m Lead Cable D-Z73 : Industrial & Scientific