When identifying metal objects without contact, inductive proximity switches are simply the most cost-effective solution. If an electrically or magnetically conductive object approaches or leaves, they automatically send out a signal change. Inductive proximity switches are extremely reliable with a high repeat accuracy. And thanks to wear-free operation as well as resistance to temperature, noise, light or water, they have a markedly long service life. Siemens cover the complete application spectrum with a large variety of designs and transmission ranges.