Omron E39-F1 is a transmissive photoelectric sensor used for object detection. It is equipped with an infrared light source and receiver which detects when an object passes by the sensor, allowing for either automatic, or manual control of machinery or devices. The sensor features a long range detection of up to 80 cm, allowing for detection from a distance, and is protected from dust and moisture. The E39-F1 is also protected from reverse polarity, meaning incorrect wiring will not damage the device. The E39-F1 can also be used in lighting applications and is suitable for a variety of applications such as automation, security, and industrial automation.