The application of sensors in logistics sorting is mainly in the peforming of photoelectric sensors(also named photo senser, photocell switch, optical sensor,ects.), especially in the conveying and sorting process, where these sensors play a crucial role.

 During the logistics sorting process, photoelectric sensors detect the presence or absence of packages on the conveyor line, achieving rapid and accurate identification of the packages. Due to the diverse shape and color of packages, there are high requirements for the reliability of photocell switches.
 To solve this problem, Tianjin G-TEK Sensor Technology Company has developed the PF21B series of miniature rectangular photoelectric sensors with detection distance 4 meters, which adopt background suppression and polarize resistance mode to achieve efficient and accurate detection. Especially in limited space where is difficult to install reflectors, it can replace traditional diffused reflection photo sensor and detect various color packages without attenuation, avoiding missed detections. This not only improves the stability and efficiency of the conveyor line, but also fault-free operation, greatly improving the efficiency and accuracy of logistics sorting.

  In addition, the PF21 series photoelectric sensors are also applied in the efficient operation of logistics warehouses, effectively saving manual handling by monitoring the position of goods in real time. In sorting applications, these sensors adopt the principle of time-of-flight, detecting various objects almost without attenuation, and setting distances through one click teaching, making it more convenient to adapt to customer application needs. The application of these technologies not only improves the automation level of logistics sorting, but also significantly enhances the work efficiency of logistics warehouses.

   G-TEK PF21 Series Product ParametersAnd Features                               

PF21B-4000A Series photoelectric sensor / photocell switch Working principle: Background suppression optical sensor Sensing distance: 4000mm Supply voltage: 10~30VDC Enclosure dimension: 12mmx32.5mmx21.5mm (0.47'x1.28'x0.85') Ambient light immunity: 20000Lux of sun light, 3000 of incandescent lamp light Enclosure rating: IP65	PF21R Series photoelectric sensor switch Working principle: Retro reflective optical sensor Sensing distance: 4000mm Supply voltage: 10~30VDC Enclosure dimension: 12mmx32.5mmx21.5mm (0.47'x1.28'x0.85') Ambient light immunity: 20000Lux of sun light, 3000 of incandescent lamp light Enclosure rating: IP67	PF21T Series photoelectric sensor switch Working principle:Through-beam optical sensor Sensing distance: 5m, 10m, 15m 30m optional Supply voltage: 10~30VDC Enclosure dimension: 12mmx32.5mmx21.5mm (0.47'x1.28'x0.85') Ambient light immunity: (For sensing distance 5m , 10m):50000Lux of sun light, 3000 of incandescent lamp light (For sensing distance 15m, 30m): 10000Lux of sun light, 3000 of incandescent lamp light Enclosure rating: IP67