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Pressure Probes

Product catalog summary

Overview
SEBA Pressure Probes are designed for precise water level measurement in both groundwater and surface water. They feature a robust ceramic capacitive measuring cell, offering high accuracy and long-term stability. The probes are available in various pressure measuring ranges, from 0-2 m to 0-300 m water column, and come in both relative and absolute pressure versions. They support analog and digital interfaces, including 4–20 mA, SHWP, Modbus, and SDI-12, and are compatible with SEBA and third-party data loggers.

Pressure Probe Families
SEBA offers three main pressure probe families:

DS 22 / DST 22: Digital relative pressure probes with optional temperature measurement. They support SHWP, Modbus, and SDI-12 interfaces.
DS-P / DS-PT: Analog relative pressure probes with a 4–20 mA output signal, suitable for process control systems. The DS-PT includes a temperature sensor.
DS-APT: Digital absolute pressure probe that measures without a pressure compensation line, using an internal or external barometric sensor for atmospheric pressure measurement.

Special Features

Temperature Measurement: Available in DST 22 and DS-PT models.
Saltwater-Resistant Version: Probes are available in a version made of V4A stainless steel for use in saline environments.

Technical Specifications
The probes offer high measuring accuracy, with digital versions achieving up to ±0.05% FS. They are constructed from high-grade stainless steel and have a protection class of IP68. The operating temperature range is -15 to +80°C.

Applications
SEBA pressure probes are suitable for a wide range of applications, including well and tank monitoring, construction sites, sluices, hydraulic structures, and flood-prone monitoring stations. They are also used in coastal areas and saline waters.

Advantages of Ceramic Capacitive Measuring Cell

Durable and resistant to various media.
Insensitive and easy-to-clean sensor surface.
Reliable for long-term monitoring applications.

Contact Information
SEBA Hydrometrie GmbH & Co. KG, Gewerbestraße 61 A, 87600 Kaufbeuren, Germany. Phone: +49 (0) 8341 96 48 - 0, Email: [email protected], Web: www.seba.de

Catalog excerpts

SEBA Pressure ProbesPrecise water level measurement in groundwater and surface water • Robust ceramic capacitive measuring cell for high measuring accuracy and long-term stability • Wide range of pressure measuring ranges - depending on the version, from 0-2 m to 0-300 m water column • Relative and absolute pressure probes for different measurement tasks • Analog and digital interfaces: 4-20 mA, SHWP, Modbus and SDI-12 • Compatible with SEBA data loggers, third-party data loggers and process control systems • High measuring accuracy - depending on the version, up to ±0.05 % FS • Robust and slim design made of high-grade stainless steel • Optional temperature measurement or saltwater-resistant version B22_Dmcksonden_s1_4_ei1.08.2026

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Our Pressure Probes at a Glance SEBA offers three coordinated pressure probe families for different measurement tasks and system environments. Depending on the version, digital or analog interfaces, optional temperature measurement, and saltwater-resistant material variants are available. Digital Relative Pressure Probes Analog Relative Pressure Probes The DS 22 provides precise and long-term stable water level measurement based on the relative pressure principle. Several digital interfaces are available for integration into different measurement systems. The DST 22 additionally measures water...

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SEBA offers pressure probes for a wide range of system integrations and operating conditions - from conventional groundwater and surface water monitoring and integration into process control systems to applications at flood-prone monitoring stations and in saline media. The heart of SEBA pressure probes is a robust ceramic capacitive pressure measuring cell. The water pressure acting on the ceramic membrane is detected capacitively and converted into a precise measuring signal. ADVANTAGES FOR PRACTICAL APPLICATIONS: • Durable ceramic membrane for long-term field use • High resistance to a wide...

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Subject to change without notice due to technical developments. SEBA Hydrometrie GmbH & Co. KG • GewerbestraBe 61 A • 87600 Kaufbeuren • Germany Telefon: +49 (0) 8341 96 48 - 0 • E-Mail: [email protected] • Web: www.seba

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Pressure Probes

Pressure Probes

Catalog excerpts

All Seba Hydrometrie GmbH & Co. KG catalogs and technical brochures