SICK CQF Series Proximity Sensor

Capacitive level sensor for reliable detection of liquids through container walls, or with direct contact. 0.5 to 6mm sensing range, with NO or NC output functionality.

This model has 8 variants.
Effective August 29th, 2025 SICK has added a 9.8% surcharge for all of their products. The surcharge will appear as a separate line item on each sales order.
Part Number
  • CQF Series
Highlights...

Features

  • Output function (100mA): NO / NC
  • Switching output: NPN / PNP
  • Sensing range: 0.5 to 6mm
  • Plug and play design
  • Teach-in cable adjustment
  • LED indicator for voltage and output
  • Electrical wiring: DC 4-wire
  • Housing material: plastic
  • Dimensions: 16mm x 34mm x 8mm
  • Enclosure ratings: IP67, IP68, IP69K
  • CULus certification
  • Ecolab certified

The SICK CQF Series Proximity Sensor is a capacitive level sensor built for reliable detection of liquids through container walls, as well as direct contact with the liquids. The measurement principle compensates for foam, moisture and deposits. This ensures that the CQF Series only detects the liquid in the container. These sensor are a plug and play design, ready for operation without additional settings for standard applications. For challenging applications, it can be taught-in quickly and easily using the cable. The mounting set offers various installation options.

Applications

  • Level detection through container walls
  • Semi-conductor industry
  • Food industry