LM393 Motor Speed Measuring Sensor Module

Groove Width: 5mm
Output state indicator lights
Obscured output high; unobstructed output low
The comparator output, the signal is clean, the waveform, driv ing ability, more than 15mA
Operating Voltage: 3.3V-5V
The output in the form: Digital switching outputs (0 and 1)
A fixed bolt hole for easy installation
Small plates PCB Dimensions: 3.2 x 1.4cm / 1.25 * 0.55″
Using a wide voltage LM393 comparator