-- Light resource: Infrared LED -- Strong anti-shock and anti-vibration. -- Non-contact object detect: Avoid the photoelectric sensor to contact the object directly, protect the inducing component from damage and extend the operation life of the sensor. -- Detect any objects with different materials: Detect objects by the light quantities reflected and received, detect objects such as glass, metal, plastic, wood, fluid...etc. -- Fast response: Max. 3ms, Manufacturer: SEVEQIS