Hall Sensor NJK5002C Detective Distance 5-8mm DC 6V-36V 300mA NPN 3 Wire NO
It is a component widely used in automatic control industry for detecting, controlling, and noncontact switching. When proximity switch is close to some target object, it will send out control signal.The Hall Sensor Proximity Switch is only for detecting permanent magnet.high response frequency, cylinder type, simply mounting and reliably working.