Pro-Range XKC-Y26PNP Non-Contact Liquid Level Sensor - DC 5-12V, PNP Output

This sensor is designed specifically for non-metallic containers such as plastic, glass, or ceramic. The capacitive sensing principle requires the container wall to be non-conductive. It cannot detect liquid through metal walls as they shield the electric field.

The PNP output acts as a sourcing switch. Connect the sensor's V+ to your DC 5-12V supply, GND to common ground, and the signal (OUT) wire to your controller's digital input pin. A pull-down resistor (e.g., 10kΩ to GND) may be required on the input for a clean logic low state when the sensor is off.

Yes. Since detection is non-contact through the container wall, the sensor is isolated from the liquid. This makes it suitable for boiling water, strong acids, alkalis, and oils, as the sensing element does not come into direct contact with the medium, preventing corrosion or thermal damage.

The sensor typically features a potentiometer or sensitivity adjustment screw. To calibrate, mount the sensor on the empty container at the desired detection point and adjust until the output LED turns off (indicating no liquid). Then, fill the container to that level and fine-tune until the LED reliably turns on.