A3144 Hall Speed Sensor Counting Sensor

Brief Description:
First, dimensions: length 32mmX 70mm wide 14mmX high
Second, the main chip: LM393, 3144 Hall sensor magnetic sensing probe
Third, the working voltage: DC 5 V
Four characteristics:

            1, having a signal output instruction;

            2, with mounting holes for easy fixed installation;
            3, the output valid signal is low;
            4, the sensitivity is adjustable (fine-tuning);
            5, high sensitivity magnetic sensors;
            6, the output switch circuit board can be directly connected to the microcontroller IO port;
            7, can be used for motor speed, position detection and other occasions.