Versatile Inductive Proximity Sensor:Versatile inductive proximity sensor suitable for a wide range of applications, from automation to security. Lutron Motion Sensor Light Switch Programming|Heartbeat Sensor Arduino|NPN Normally Open Switch Type:Features NPN normally open switch type, ensuring reliable and...
An auto-leveling sensor. I use the $4.48LJ12A3-4-Z/BY Inductive Proximity Sensor on eBay(orange tip) that worked on my RAMPS 1.4 without any modification. There is a similar one LJ12A3-4-Z/BX(blue tip) that may require you to supply the sensor with 12v then reduce it's output to...