Liquid Level Sensors

HB Products offers a wide range of capacitive level sensors for refrigeration and industrial use. Due to the capacitive principle the sensors are optimized and calibrated for different groups of liquids and different working conditions. All types are suited for measuring of liquid levels in gas or air.


All sensors consists of a mechanical and an electrical part. The mechanical part has no moving elements, and it can have different shapes and length. The electrical part is either pre-calibrated or easy to calibrate versions. All the sensors can be supplied in a special version for direct valve control of a liquid valve. All sensors must be supplied with 24 V AC/DC.

Most of the electronic units are suitable for wet and low ambient temperatures due to a built-in heater which will protect it against condensation.

The mechanical parts are manufactured up to 3000 mm length in a rigid rod version and for longer applications we have flexible wire version which can be used in standpipes from 250 mm to 6 m length. Most of the sensors has a ¾” or ½” connection with different thread types and normally rated for 100 or 150 bar pressure.

Most of the sensors can be equipped with a special 2 wire electronic unit suited for hazardous environments and comply with the IECEx specifications.

This interactive table can help guide you to the different sensor variants.

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