SICK CQ Series Proximity Sensor

Capacitive proximity sensor for reliable detection of powders, granulates, liquids and solids. 6 to 25mm sensing range, with NO, NC, and complementary output functionality.

This model has 27 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
  • SICK CQ Series
Highlights...

Features

  • Output function: NO, NC, NC/NO, complementary
  • Switching output: NPN / PNP
  • Sensing range(s): 6 up to 25mm
  • Electrical wiring: DC 3-wire / 4-wire
  • Housing material: plastic
  • Dimension(s):
    • 16mm x 39.5mm x 12mm
    • 28mm x 46mm x 5.5mm
    • 35mm x 69.5mm x 15mm
  • Supply voltage: 10 to 36VDC
  • Enclosure rating: IP68 / IP67 (depending on type)

The SICK CQ Series Proximity Sensor can detect various materials, including powder-based, granulated, liquid, and solid – even through plastic walls. SICK’s capacitive proximity sensors also feature high electromagnetic compatibility (EMC), which prevents incorrect switching. CQ sensors feature rectangular housings that are suitable for all manner of installation conditions.