Luminescence UV Sensors
Tri-Tronics offers the Stealth-UV with NPN and PNP output. These UV sensors feature analog output plus a digital output. Luminescence UV sensors have very specific applications. These sensors will detect any object that contains invisible fluorescent material such as a safety seal or glue beads. There are many products that can be detected easily with a UV sensor. Vibration or angle to the sensing face are easily overcome with this product. White labels on some white materials are easy to sense. The recommended part number is UVS-1. Tri-Tronics offers the UV sensor in a fiber optics version that can be used for those hard to reach applications. UV (PDF)
Datalogic offers UV sensors with a quick teach function. UV Sensor (PDF)
Leuze The LRT 440 or the LRT 8 UV Sensor is a compact scanner with remote teach capabilities.