Contrast sensor
SMARTEYE® Tri-Tronics

SMARTEYE® Light Sources and Receivers were specifically designed to perform beam break or thru-beam sensing tasks where the material or container is dense, where the lens is subject to contamination build-up, or for long range sensing in harsh environments. Standard models include dual light sources. A super high intensity model with 10 LEDs is also available to penetrate containers for content verification.

Their unique high intensity, dual-LED design provides twice the useable light energy as compared to single beam sensor designs.
Features:

Contrast Indicator allows easy set-up for optimum performance and displays actual performance during operation
Pulse modulated for high immunity to ambient light
Complementary NPN or PNP output transistors
800 microseconds... beam make or beam break