Miniature Infrared Through Beam Photoelectric Sensor, 0-5m

An infrared through-beam photoelectric sensor consists of a transmitter and a receiver. It detects whether an object has passed by through the continuous transmission of an infrared beam. When the beam is normally received by the receiver, the system maintains a stable output. Once an object enters and blocks the beam, the signal at the receiver changes, allowing determination of whether the target has passed or triggered an alarm.

When installing through-beam photoelectric sensors, first ensure precise alignment between the transmitter and receiver to prevent false triggers or detection failures caused by beam misalignment. Second, select locations with stable lighting conditions free from direct strong light, avoiding dust, smoke, or reflective objects that could degrade beam quality. Additionally, outdoor installations require protective hoods or waterproof enclosures to enhance the protection rating. Finally, installation height should be set according to the application scenario. For example, access control systems should be positioned at chest height to ensure optimal detection performance.

Because photoelectric sensors are widely applied across diverse fields, modern life relies heavily on their participation—from gate barriers, copiers, scanners, and printers to garage door openers and logistics sorting lines.