The IR Duet height sensor allows measurement of the distance between the sensor and the reference plane, which is useful for performing automatic and very accurate calibration of the machine. It works by differential modulated IR.
It is very small in size (small enough to be mounted under the heatsink of a hotend v6).
The sensor detects the height above the plane when the light reflected from two separate LEDs is equal. The two LEDs are positioned to reflect light back into the sensor at slightly different heights. This allows the sensor to be used on most bed surfaces. The sensor connects to the Duet 2 and also Duet 3 family of boards via a dedicated connector.
For technical specifications please visit the wiki dedicated to Duet products: https://duet3d.dozuki.com/ - https://docs.duet3d.com/ Here you can find technical details and installation examples. To share opinions and questions, including technical ones, you can consult the dedicated forum: https://forum.duet3d.com/
The item you will receive may differ in some features from the one depicted in the photo, depending on the production batch. Despite this, functionality is maintained.