These are commonly used for 3D printer bed level compensation (Auto Level), as well as many other uses.
18mm diameter body, 8mm sense distance 3-wire NPN sensor
We also carry the 4-wire version that can be wired NC or NO (normally closed OR normally open)
Operates at 6-36V DC. If connecting this to an Arduino or other common 5V 3D printer control board, you’ll need to reduce the output voltage of the sensor do <5VDC. We offer pre-built voltage divider boards in our other listings to make this easy.
This listing is for the sensor only.
FREE Shipping to the USA + APO addresses.