Pro-Range XKC-KL800-NPN-NO Laser Ranging Sensor - DC 5-24V

The sensor has an NPN (sinking) Normally Open (NO) transistor output. Connect the brown wire to your positive supply (5-24V DC), the blue wire to ground, and the black wire is the signal output. When an object is detected within range, the black wire will switch to ground (0V), providing a low signal to your PLC input, microcontroller pin (with a pull-up resistor), or relay coil.

Yes, you can power it with 5V from your Arduino's VCC pin. Ensure your power supply can provide sufficient current. The NPN output is compatible with 5V logic, but you must connect the signal wire to a digital input pin configured with an internal or external pull-up resistor to 5V to read the active-low detection signal correctly.

The sensor features concealed threaded holes for secure mounting. Use the provided or appropriate M3 screws. The sensing distance is factory-set but can often be adjusted via potentiometers accessible under the cover or via configuration buttons as per the model's manual. Always refer to the specific datasheet for calibration procedures to achieve millimeter-level accuracy.

This is a diffuse reflection (proximity) sensor. It emits a laser beam and detects the light reflected directly off the target object. It requires only a single unit for installation but its maximum range and accuracy can be affected by the target's color and reflectivity. Through-beam systems use separate emitter and receiver units for longer ranges and higher immunity to target surface properties.