Features:
This is an inductance proximity switch specially for 3D printer.
Red LED indicates that it's available to detect the sensor operation state. With IP65 protection.
When proximity switch is close to some target object, it will send out control signal.
Used widely in machine tool industry, frequency counters and other automatic control system.
It is a component widely used in automatic control industry for detecting, controlling, and noncontact switching.

Specifications:
Model: LJ12A3-4-ZBX
Wire shell material: PVC 
Sensor shell material: Nickel plated brass 
Cable length: Approx. 110cm / 3.6ft
Dimension: M12 x 6cm (2.4inch)
Type: NPN
Detection Distance: 4mm / 0.15inch
Switch appearance Type : Cylinder type
Working voltage: DC 6-36V
Continuous current: 300mA
Short circuit protection: No
Polarity Protection: Yes
Protection grade: IP65
Output indication: Red light
Working temperature: -25-70℃
Connection way: 3-wire PVC cable
Package weight: 45g

Package List:
1 x Inductance Sensor Switch