The A3144  is a high-temperature, digital unipolar Hall Effect switch. It’s a magnetic "on/off" switch that detects the presence of a specific magnetic pole (usually the South pole) and changes its output signal accordingly. They are fantastic for detecting magnets, measuring RPM, or creating non-contact limit switches.

The package include 10 Pcs of A3144.

Same day shipping from NY.

Order under $10 will be shipped without tracking.