Banner Engineering QS18 Small Spot Diffuse Photoelectric Sensors

QS18 photoelectric sensors from Banner Engineering are now available in diffuse models with a small, visible spot for detecting the presence/absence of small features (for example screws or tabs) on a larger part. The new models provide a compact, cost-effective alternative to laser sensors for contrast detection of features in error-proofing and inspection applications.


  • Features a universal housing with an 18 mm threaded lens or side mounts
  • Easily fits (or retrofits) almost any mounting situation
  • Exceptional optical performance, comparable to larger “MINI-style” or barrel sensors
  • 10-30VDC operation, with complementary (SPDT) NPN or PNP outputs, depending on model
  • Meets IP67 and NEMA 6 standards for harsh environments
  • Features bright LED operating status indicators visible from 360°

Banner Engineering QS18 Photoelectric Sensors

Banner Engineering Technical Datasheets