Harsh duty 18mm round photoeyes have an IP69K rating for food and beverage applications and detect presence several ways: diffuse (light reflects from the target object back to the sensor), retroreflective (an object interrupts light rebounding off a fixed reflector), or through-beam (an object obstructs light traveling from an emitter to a receiver).
Harsh duty 18mm round photoeyes have an IP69K rating for food and beverage applications and detect presence several ways: diffuse (light reflects from the target object back to the sensor), retroreflective (an object interrupts light rebounding off a fixed reflector), or through-beam (an object obstructs light traveling from an emitter to a receiver).