Carlo Gavazzi A94-20 is a compact capacitive liquid level sensor with an approximately 3 mm nominal sensing distance, thermoplastic polyester housing and 5 m cable for water and liquid-level monitoring applications.
The Carlo Gavazzi A94-20 is a compact capacitive liquid level sensor designed for reliable level detection in swimming pools and other suitable liquid-monitoring applications. The sensor uses a capacitive sensing principle, allowing liquid presence to be detected without the exposed conductive electrodes used by conventional conductive level probes.
Part of the Carlo Gavazzi A94 level sensor range, the A94-20 features a durable thermoplastic polyester housing and a compact cylindrical construction measuring approximately Ø22 × 51 mm. Its permanently connected 5 m cable provides useful installation flexibility where the sensor must be positioned remotely from the associated control equipment.
The A94-20 provides a nominal sensing distance of approximately 3 mm and is intended for connection to compatible external amplifier or level-control electronics. With an operating temperature range of -25 to +70 °C and robust construction suitable for liquid-level applications, it provides a practical sensing solution for automatic water-level monitoring and control.
Capacitive level sensors detect changes in electrical capacitance caused by the presence or absence of the target material near the sensing surface. In liquid-level applications, this allows the sensor to determine when water or another suitable medium reaches the required sensing position without relying on mechanically moving floats.
The Carlo Gavazzi A94-20 combines this capacitive operating principle with a compact polyester sensor body and long connection cable. When integrated with compatible level-control electronics, it can form part of an automatic system for monitoring water levels and controlling pumps, valves or associated equipment.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | A94 |
| Model | A94-20 |
| Part number | A94-20 |
| Product type | Capacitive liquid level sensor |
| Sensing principle | Capacitive |
| Nominal sensing distance | 3 mm |
| Maximum sensing range | Up to 6 mm |
| Housing material | Thermoplastic polyester |
| Body dimensions | Ø22 × 51 mm |
| Cable length | 5 m |
| Operating temperature | -25 to +70 °C |
| Output | For compatible amplifier / level-control electronics |
| Application | Liquid level detection |
| Typical application | Swimming pool water-level monitoring |
| EAN | 5709870048451 |
The Carlo Gavazzi A94-20 is a capacitive liquid level sensor designed for applications including swimming pool water-level monitoring and compatible automatic level-control systems.
The A94-20 uses a capacitive sensing principle to detect changes caused by the presence of liquid near its sensing surface.
The sensor has a nominal sensing distance of approximately 3 mm, with a sensing range of up to approximately 6 mm.
The Carlo Gavazzi A94-20 is supplied with an integral 5 m connection cable, providing flexibility when positioning the sensor and associated control equipment.
The sensor has a compact cylindrical body measuring approximately Ø22 × 51 mm, making it suitable for installations where space is limited.
Carlo Gavazzi sensing and control products are widely used in industrial automation and building-control applications, with the A94-20 providing a compact capacitive solution for reliable liquid-level monitoring and automatic water-management systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...