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Key Benefits

High Performance

The small infrared light spot of the SLE5 can quickly detect the gap between opaque labels on clear or opaque backing. The 5 mm slot width and 50 mm slot depth allow precise detection of a wide variety of products, including multilayer booklet labels. The SLE5 can detect as small as a 0.5 mm minimum label or gap width. The 40µs response speed (12.5 kHz switching frequency) increases position accuracy and ensures precise detection and placement on fast moving production lines.

Easy to Use

The SLE5 label sensor can be taught via single teach button or remote teach wire and can be configured to detect the label or the backing paper based on teach order. Teach mode can be performed either statically or dynamically at speeds up to 20 meters per minute. Highly visible green and amber status LEDs confirm that the teach was accepted and display the current output status.

Simple Installation

The SLE5 label sensor’s compact housing makes it easy to install in the dispensing ledge. The dovetail mounting option is designed for simple installation directly on machines, no tools required. In addition, standard M5 mounting holes are available for maximum versatility. Models are available with 2 m cables or integral M8 connector and with NPN or PNP output.


  • Processing and packaging machinery
  • Automatic labelers
For More Information

SLE5 Series Optical Label Sensor
SLE5 Series Optical Label Sensor

The SLE5 is a rugged, industrial label sensor for single-layer and multilayer label detection, IP65 rating for harsh environments, and flexible mounting options.

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Model Number Supply Voltage Output Connection
SLE5-PIR-2M  10 V dc to 30 V dc PNP 2 m (6.5 ft) unterminated 4-wire PVC cable
SLE5-PIR-Q7 PNP Integral 4-pin M8/Pico-style male quick disconnect 
SLE5-NIR-2M NPN 2 m (6.5 ft) unterminated 4-wire PVC cable
SLE5-NIR-Q7 NPN Integral 4-pin M8/Pico-style male quick disconnect