Item Name: Square Inductive Proximity Sensor Switch 5mm Detection Distance Description: Inductive Proximity Sensors; Detection Distance: 5; Used for metal detection, iron, stainless steel, brass, aluminum etc.; 200CM PVC Connection Cable; Switching frequency: 500HZ; Output: Switching Transducer. Measurement System: Metric PCs in Item: 1 PC. Mount bracket is sold separately. Manufacturer: WenZhou GRTIC Technology Inc. China