Duet mini IR Probe Cheap Sale Popular

Differential height sensor board with cable kit

A differential modulated IR height sensor. The sensor detects the target height by looking for the reflected light from two separate LEDs to be equal. The two LEDs are positioned so that they reflect light into the sensor at slightly different heights. This allows the sensor to be used on almost any bed surface

It connects to the Duet family of controllers through a dedicated probe header.