Sees liquidthrough the wall.

XKC's non-contact liquid level sensors mount on the outside wall of a plastic or glass container and detect whether liquid is present without touching it. Built on over ten years of in-house R&D, XKC also offers ultrasonic, laser, infrared and PIR sensors.

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X1Non-contact liquid level sensing

No hole, no contact.

01 · Rising
The liquid level rises
The sensor sits on the outside of the tank. Nothing is drilled or sealed.
02 · Detected
Detected through the wall
When the level reaches the sensor, its output switches on.
03 · Any colour
Any colour
Water, coffee, milk or dye: detection doesn't depend on colour.
04 · Bubbles
Installation with bubbles and foam in mind
Installing away from places where bubbles or foam collect helps maintain stable detection.

Illustrative animation of how a non-contact liquid level sensor works.

X2XKC in numbers

Small sensors, proven design.

Years of sensor R&D and manufacturing: 10+
Patents and certifications: 30+
Waterproof non-contact liquid level sensors: IP67
Liquid level accuracy, at best: ±1.5 mm

CE · RoHS

X3Four ways to measure

Pick the physics for the job.

Non-contact
Y23–Y29
Senses liquid through the container wall.
Contact
Y20
A probe that stays reliable in steam and condensation.
Ultrasonic
DS1603
Times an ultrasonic echo to track the liquid level.
Thin Tube Liquid Level Sensor
XKC-Y28A · XKC-Y26A

X4Lineup

Seven product families, including thin-tube sensing.

Non-contact liquid level
Y23 · Y25 · Y26 · Y27 · Y28 · Y29
- Detects through container walls
- Up to ±1.5 mm accuracy, IP67
- Detection is independent of liquid colour; install away from places where bubbles collect
Contact liquid level
Y20
- Stable in steam and condensation
- Immune to light, stain-resistant
Thin-tube liquid level sensor
XKC-Y28A
- Detects liquid from outside thin non-metallic tubing
- Clip-on installation without liquid contact
Detachable thin-tube liquid level sensor
XKC-Y26A
- Detects liquid from outside thin non-metallic tubing
- Detachable design for repositioning
Infrared motion
001A · KC100 · KD200 · KE200
- Compact and easy to install
- Adjustable range, strong anti-interference
PIR presence
003K4
- High-sensitivity human detection
- High/Low, NPN or relay output
Ultrasonic level
DS1603
- Non-contact ultrasonic measurement
- Reliable liquid level in harsh environments