A small German company (about 200 employees) di-soric has very interesting sensor products of its own design, and also sells sensors from other manufacturers under its own brand, obviously on contractual terms.

The optical motion sensor OBS is used for non-contact motion detection and motion direction at close range. Such tasks exist in conveyor production. The sensor has a detection range of 20 mm to 40 mm. The sensor can distinguish between movement and no movement (stop) and, if necessary, determine the direction of movement. Detected: metallic, non-metallic, shiny surfaces.

Основные параметры датчика OBS 60 M 30 G3-T3 артикул 207826:

- расстояние обнаружения объекта 20 … 40 mm,
- излучатель ИК лазер 850 nm, класс 1М,
- диаметр светового пятна 2 mm,
- скорость движения объектов до 5 m/s,
- отклик 10 ms,
- рабочие температуры  +5 … +45 °С,
- герметизация IP 67,
- питание 10 … 30 V DC,
- габарит 60 х 35 х 16 mm,
- корпус из анодированного алюминия, оптика из пластика PMMA,
- встроенный разъём М8, 3 контакта,
- тремя встроенными потенциометрами настраиваются: чувствительность датчика, функция бинарного выхода (PNP / NPN),
  длительность выходного импульса.
 Ориентир цены: 430 €.

Источник: https://www.di-soric.com/int-en/PM/Sensors/Special-sensors/OBS-Optical-motion-sensors/OBS-60-M-30-G3-T3__207826

Похожее изделие иного производителя:             
https://www.sensorika.com/ru/datchiki/lazernyj-datchik-dliny-i-projdennogo-puti/         



A small German company (about 200 employees) di-soric has very interesting sensor products of its own design, and also sells sensors from other manufacturers under its own brand, obviously on contractual terms.

The optical motion sensor OBS is used for non-contact motion detection and motion direction at close range. Such tasks exist in conveyor production. The sensor has a detection range of 20 mm to 40 mm. The sensor can distinguish between movement and no movement (stop) and, if necessary, determine the direction of movement. Detected: metallic, non-metallic, shiny surfaces.

Main parameters of the OBS 60 M 30 G3-T3 sensor article 207826:

- object detection distance 20 … 40 mm,
- emitter IR laser 850 nm, class 1M,
- light spot diameter 2 mm,
- object movement speed up to 5 m/s,
- response 10 ms,
- operating temperatures +5 ... +45 °С,
- sealing IP 67,
- power supply 10 … 30 V DC,
- dimensions 60 x 35 x 16 mm,
- anodized aluminum housing, PMMA plastic optics,
- built-in connector M8, 3 pins,
- three built-in potentiometers are used to set: sensor sensitivity, binary output function (PNP / NPN), output pulse duration.
Price about: 430 €.

Source: https://www.di-soric.com/int-en/PM/Sensors/Special-sensors/OBS-Optical-motion-sensors/OBS-60-M-30-G3-T3__207826

Similar product from another manufacturer:
https://www.sensorika.com/ru/datchiki/lazernyj-datchik-dliny-i-projdennogo-puti/