This Telemecanique XUK9ARCNL2 polarized retroreflective photoelectric sensor detects an object without contact in applications such as packaging, conveying, and assembling. Its compact 50 x 50 mm body has an AC/DC input, 5-wire relay AC/DC output wiring, one programmable normally open and one normally closed contact, and a 2-m electrical cable connection. The polarized retroreflective, or polarized reflex, detection system emits a visible laser through a polarized filter to detect, with precision within a medium distance, the presence of an object of a specific color. The polarized filter assists in detection of reflective items or in bright environments where glare might be a concern. The sensor contains both the transmitter and receiver and requires the use of a reflector (sold separately). Founded over 90 years ago, Telemecanique Sensors is an independent brand of Schneider Electric, specializing in sensors and sensor-related technology. Telemecanique Sensors is a global player, present in more than 20 countries, with products distributed worldwide through a broad network of partners. Focused on 3 core values – Simplicity, Proximity and Expertise – we are experts in factory automation sensors as well as specialists in demanding applications, making our customers' lives "simply easy! "