ITEM NAME:2Pcs NJK-5002A PNP NO 10mm Hall Effect Sensor Proximity Switch DC 6~36V D5Q3 2Pcs NJK-5002A PNP NO 10mm Hall Effect Sensor Proximity Switch DC 6~36V D5Q3 It is a component widely used in automatic control industry for detecting, controlling, and noncontact switching When proximity switch is close to magnetic material, it will send out control signal. Product Name Hall Effect Sensor Proximity Switch Model NJK-5002A Theory Hall Effect Sensor Wire Type 3 Wire Type (Brown, Blue, Black) COLOR: Black&blue&sliver Output Type PNP NO(Normally Open) Detecting Distance 10mm Supply Voltage 6-36V DC Detect Object Magnetic material Diameter: 12mm Length: 55mm Cable Length 1.2M/3.5Ft Material: Aluminum,ABS Package Contents: 2x switch Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Output Type PNP NO(Normally Open). Theory Hall Effect Sensor. Detecting Distance 10mm. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.