Gravity 調整可能赤外線センサスイッチ

The sensor is easy to connect and the detection distant adjustment is easy to use. When placing the sensor in a confined spaced, the user needs to calibrate the distance adjustment prior mounting the sensor in the bracket.

This is a very good quality bracket

The quality is not the best being there are rough edges in the mold of the plastic. I guess for the price that is what you get. The function of it is very good. It has an adjustable trimpot on the back to dail in exactly where you want it to trigger.

Surprisingly good considering the price. Notes: - Fairly precise adjustment but the min and max ranges tend to vary from one unit to the other. - The min range could be a little shorter. It varies between 1.5 and 3 inches depending on the unit and the nature of the reflective surface. - There is a convenient LED integrated inside the sensor body which helps adjusting the range or debugging for embedded applications. - The plastic threads on the sensor body are pretty fragile. - Some units appear to be sensitive to RF fields. I stuck a bunch of these right next to RFID readers and about half of the sensors would stay on when the RFID readers were active. Moving them away a few cm did the trick.

Quality is not the best, but for a cheap sensor is good enough.