Maybe you are familiar with this scenario: An application uses a sensor solution which has proven optimal until now. Then the device becomes defective and there is no replacement available because the solution has either been completely removed from the product range or the technical specifications and possibly the design relating to the installation situation have changed due to advancements.

...you could also say this about the PT170420 with background suppression, since the optical sensor has been part of the product range from ipf electronic since 1997 and was already considered a high-end device back then.

With requests for devices for the reliable detection of metallic objects, we usually recommend inductive sensors. And for good reason, as there is simply no more reliable and robust solution than this proven technology if the installation conditions apply to a specific application.

As small as a fiber optic head, but full of the finest technology – those are the small diffuse reflection sensors from the OTQ9 series.

IO-Link is not a bus system but a manufacturer-independent, and secure point-to-point connection for sensors and actuators. Nothing about our sensors has changed apart from the IO-Link interface. Thus, they can be inserted as usual.