Miniature Cubic Photoelectrics Small Housing Size of 13x21x7mm Diffuse Sensor with Background Suppression up to 120mm Through-beam Sensing Range of 2M Photoelectric Cubic LOCON your reliable choice for high quality photoelectric sensors Locon Sensors is proud to be a long-time licensed distributor of Contrinex product. We supply Contrinex sensors to be used in many different applications, including providing controls for complicated industrial or consumer-interface equipment. We offer cubic sensors in a range of sizes – with many other options to choose from depending on your project requirements.