ABO-20 Single Beam IR Crossed Beam Sensor
Transport packaging — gray PE bag layer of bubble wrap
I like the approach itself, but I myself would not give more than 30 volts to the load.
Both the transmitter and the receiver are mounted in a kind of mushroom. Commercial packaging is a small cardboard box, without printing. The body parts are identical and interchangeable. The boards, of course, are different. Ordered on November 15th, shipped on November 16th, received on December 04th.
The boards are closer. The beam was interrupted – the relay worked.
It seems that the engineer, when dictating numbers to marketing, looked not at the boxes, but at the specs. What is AC, what is DC.
And here is an IMHO arrester in case of erroneous supply of overvoltage. With a relay, obviously, the receiver. On parsing, we will see that this is actually a plano-concave lens, part of a primitive two-component lens for IR rays. That the car, for example, has not yet fully entered the garage and it is not worth lowering the gate.
Inconspicuous black oval matte boxes with a smooth concave element in the center. I would not consider it as a serious signaling, but rather as an additional informant-blocker. The courier brought home.
I checked the denominations and one moment made me smile. Let’s look inside, evaluate the size of the object triggered And a paired receiver to it. The receiver and transmitter are outwardly indistinguishable. Moreover, the mushroom cap is the second component of the mentioned lens. The beam crossing sensor is like in action movies, such a flashlight.
We look at the manual. Infrared, not visible even in the mobile camera. Full track
In one place there was a flux that was not washed off, as without it. We look at the relay Anyway, that’s where nutrition comes in.
Therefore, we look at the top and bottom in one photo.