Inductive Proximity Sensor M12 Lj12A3-2-Z/Bx Normally Open Detection, 4 Pack Product Features ?Inductive Proximity Switch Type: LJ12A3-2-Z/BX, 3 Wire NPN NO. Detecting Distance: 2mm, Diameter: 12mm. ?Supply Voltage: 6-36VDC, Current Output: 300mA. ?LED working indicator: signal indicator, when sensing metal objects the light is on for normally open, the light is off for normally closed. ?Wiring Method: Brown connect to Positive, Blue connect to Negative, Black connect to Load (signal output). ?When proximity switch is close to some target object, it will send out control signal. It is widely used in machine, paper making, light industry for limiting station, orientation taking count, speeding trial ect. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!