M12 capacitive sensors with IO-Link

Illustration of a complex machine
Illustration of a complex machine

Detect nonmetallic materials and levels of liquids and solids

Our new and improved M12 compact capacitive sensors accurately detect nonmetallic objects or materials and the levels of liquids and solids. These M12 capacitive sensors have improved electromagnetic compatibility (EMC), and their sensing face is composed of polyetheretherketone (PEEK), which is a stronger and better material than Teflon, providing outstanding chemical resistance. These latest versions are available with an IO-Link interface or with a conventional normally open or normally closed output, each with a push-pull function.

These capacitive sensors are ideal for detecting the presence of solid bodies like wood, cartons, paper stacks, bottles, and plastic. They are equally good at detecting material or liquids like granulates, sugar, oil, and aqueous media through a nonmetal wall, such as packaging, glass or plastic, with a maximum thickness of 4 mm. Flush-mounted versions have a measuring range of 0.5...5 mm, while non-flush mounting versions have a measuring range of 0.5...8 mm.

The IO-Link versions can use IO-Link Device Manager software to configure features like full/empty calibration, switching setpoint, and output type. This can be done via IO-Link through the network, or connect directly to the sensor using the USB IO-Link Master module. The software allows you to configure and test IO-Link devices and also to monitor process values after deployment.

For the standard versions of the sensor, you can use the BAE00MN M12 teach-adapter accessory. It makes it simple to calibrate the sensor, setting the switching point sensitivity and limits, all using the adapter’s pushbutton. On these versions, the power, status, and switching function indicator lights on the sensor provide diagnostics.

Our new M12 capacitive sensors provide flexibility and accuracy for nonmetal material and level-sensing application needs.



  • Optimal for object detection of nonmetallic materials and level detection for liquids or solids
  • Device manager software for configuration and diagnostics window for IO-Link versions
  • Simple sensitivity adjustment via teach-adapter for versions without IO-Link
  • Extended measuring and temperature ranges
  • Improved electromagnetic compatibility (EMC)