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Capacitive Level Sensors

Capacitive level sensors take advantage of the difference in dielectric constant between air and most liquids to non-invasively measure the presence or absence of liquids in a container non-invasively. They’re ideal for detecting liquids inside of thin-wall non-conductive vessels.

Every application is different, and suitability depends on a range of factors, but the table below is intended as a starting point to decide whether capacitive sensing is right for an application.

 

CQV Continuous Level Sensor

Vessel Material

Plastic

Glass

Metal

Compatible Liquids

Dielectric Constant ≥15

Dielectric Constant <15

Vessel Thickness

≤2.5mm

>2.5mm

Output

USB (0-100%)

I2C (0-100%)

Mounting

Adhesive-mount

Applications

Disposable

Permanent

Size

100mm standard

Custom Sizes

Available upon Request

 

Capacitive level sensors work with a wide range of materials and applications, and they also have the advantage of being mechanically simple with no moving parts and minimal required maintenance. They are well-suited for both point and continuous level measurements in disposable and non-disposable applications.

PRODUCT SELECTOR
Description Part Number Mounting Adhesive Temperature Rating Connection Method Accuracy

CQV Control Box CQV8243 None -20 – 80°C USB or Screw Terminal (I²C) ±5% View Details
Flexible Capacitive Sensor, With Adhesive CQV1000-PSA Pre-installed 0 – 60°C FFC ±5% View Details
Flexible Capacitive Sensor, No Adhesive CQV1000 None 0 – 60°C FFC ±5% View Details