Hall Effect 3144E Sensor Switch 3.3V-5V Speed Counting Sensor Magnetic Detector
1,04 €
2 using 3144E switch type Holzer sensor. 1PC 3144E Hall Effect Sensor Switch 3.3--5V Speed Counting Sensor Magnetic Detector. 3 when the sensor sensor to the magnetic field, the digital output low, the signal light is bright; if no induction to the magnetic field, then the digital output high level, the signal light is not bright.
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