(Sensor on Side) Precision Swiss Made IR Object/People Detector
These are small precision made devices that are designed to detect objects on a conveyor belt, people, etc. They are extensively used in factory automation and consists of a sealed IR emitter and detector circuit - all inside a compact 63mm long x 17mm diameter encased sensor assembly head. The device has a flexible cable and is very simple to use. Simply mount the unit in the area where you wish to detect objects or people (such as a doorway). A reflector is mounted (not included but we tried a 2" x 4" auto reflector we purchased at a local discount store and it worked fine) up to 3 meters away. Connect any source of DC from 10V up to 30V to 2 of the leads and a load such as a chime, buzzer, relay, LED, etc. to the output leads now each time the invisible beam is interrupted, the load will activate or deactivate (your choice) then immediately reset when the beam is not blocked. These were made for continuous reliable industrial applications and as such were very expensive. They are new in their factory boxes with simple to use instructions. Made by Scientific Technologies Inc. and the original price of these were a fortune! Hurry as we have only a limited quantity.