Subsea Pressure and Temperature.
Subsea environments present some of the most extreme conditions any instrumentation will face. Sensors deployed on the seabed, within subsea control pods, or on remotely operated vehicles must withstand crushing hydrostatic pressures, aggressive saltwater corrosion, and service intervals measured in years rather than months. Retrieval for maintenance or recalibration is costly and operationally disruptive, so reliability at the point of installation is not optional. Stork Solutions designs and supplies dedicated subsea pressure and subsea temperature transmitters engineered from the ground up for permanent underwater deployment. Built from Duplex stainless steel, marine bronze, or titanium, and fitted with wet-mateable connectors rated to 4,000 m, our subsea instruments deliver the measurement accuracy, corrosion resistance, and long-term stability that deepwater operations demand. From oil and gas exploration and subsea hydraulic systems through to deep-sea research vehicles and dredging infrastructure, Stork Solutions provides the sensing technology that keeps critical subsea assets monitored and protected
SSTT
Key Subsea Applications:
SSPT Subsea Pressure Transmitter for Deepwater and Offshore Applications
Accurate pressure data is fundamental to the safe operation of subsea infrastructure. Whether monitoring hydraulic circuits inside a subsea control pod, verifying pipeline pressures on the seabed, or providing real-time feedback to an ROV pilot, the pressure transmitter must deliver stable, repeatable measurements at depth without the possibility of routine maintenance access. The SSPT Subsea Pressure Transmitter is purpose-built for these conditions. Its ceramic (96% Al2O3) piezo-resistive sensing element provides inherent corrosion resistance and long-term measurement stability, while pressure ranges from 1 to 400 bar cover everything from shallow-water monitoring through to high-pressure deepwater hydraulics. Accuracy of less than 0.25% FS is standard, with an optional upgrade to less than 0.10% FS for critical measurement points where tighter tolerances are required. The SSPT is available in Duplex stainless steel, marine bronze, and titanium, allowing engineers to match the housing material to the specific corrosive environment and project specification. Wet-mateable electrical connectors with depth ratings to 4,000 m ensure secure, reliable connections even at extreme depths, and Stork Solutions can accommodate customer-specified connectors from major subsea connector manufacturers for seamless integration into existing infrastructure.
SSTT Subsea Temperature Transmitter for Reliable Underwater Monitoring
Temperature measurement in subsea environments supports a wide range of operational and safety-critical functions, from tracking thermal conditions in pipelines and manifolds to protecting sensitive electronics inside subsea pods and control systems. The SSTT Subsea Temperature Transmitter uses a Class A PT100 sensing element to deliver accuracy of less than 0.5 degrees C as standard, with an optional upgrade to less than 0.25 degrees C for applications where tighter thermal monitoring is essential. Like the SSPT, the SSTT is constructed from Duplex stainless steel, marine bronze, or titanium, and supports 2, 3, or 4-pin wet-mateable connectors for permanent submersion to 3,000 m depth. An optional protruding probe in various lengths enables targeted temperature measurement at specific points within subsea assemblies, pipelines, or process equipment. The combination of high corrosion resistance, configurable mechanical connections, and proven sensing technology makes the SSTT a dependable choice for long-duration subsea deployments where sensor retrieval is impractical and measurement continuity is critical.
Wet-Mateable Connectors and Material Options for Subsea Integration
Successful subsea instrumentation depends as much on the connector and housing as it does on the sensor itself. A pressure or temperature transmitter that cannot be reliably connected, or that corrodes within its first year of deployment, delivers no value regardless of its measurement specification. Both the SSPT and SSTT are designed around wet-mateable electrical connectors that can be mated and de-mated underwater, supporting installation and maintenance by ROV without the need to recover equipment to the surface. Connector depth ratings extend to 4,000 m, and Stork Solutions works with customer-specified connector brands to ensure compatibility with existing subsea umbilicals, junction boxes, and control systems. Material selection is equally critical. Duplex stainless steel provides excellent general corrosion resistance for most subsea applications. Marine bronze is well suited to seawater-immersed installations where chloride resistance and biofouling tolerance are priorities. Titanium offers the highest corrosion resistance and strength-to-weight ratio, making it the preferred choice for the most demanding deepwater and long-life deployments. This flexibility in both connector and material specification allows subsea engineers to tailor each transmitter to the precise requirements of the installation.
Subsea Pressure and Temperature Measurement Across Oil and Gas, Research, and Marine Infrastructure
Stork Solutions’ subsea transmitters serve a broad range of underwater applications across multiple sectors. In oil and gas, the SSPT monitors wellhead pressures, subsea hydraulic equipment, and pipeline systems where accurate pressure data directly supports production optimisation and integrity management. Subsea pods and control modules rely on the SSTT to verify that internal electronics remain within safe operating temperatures, reducing the risk of communication failures or unplanned shutdowns. Deep-sea ROVs and AUVs use both pressure and temperature transmitters for environmental sensing, navigation support, and equipment protection during inspection, maintenance, and repair campaigns. In deep-sea dredging, pressure monitoring on suction pipes and pumps helps operators maintain efficient material transfer and avoid equipment damage. Beyond oil and gas, subsea transmitters support oceanographic research, submarine installations, renewable energy foundations, and marine civil engineering projects where long-term, maintenance-free measurement at depth is a fundamental requirement. For surface and topside pressure measurement on marine and offshore vessels and platforms, Stork Solutions also supplies a full range of marine-approved transmitters including the DMK 457, DMK 458, and LMK 458 with Lloyd’s Register, DNV, ABS, and CCS certifications.
Specify Subsea Instrumentation with Confidence
Selecting pressure and temperature transmitters for subsea deployment involves balancing sensor performance, material compatibility, connector specification, depth rating, and integration requirements against the realities of a project where post-installation access is limited and the cost of failure is high. Stork Solutions’ UK-based technical team works with subsea engineers, ROV operators, EPC contractors, and equipment OEMs to specify the right SSPT and SSTT configuration for each application, from initial material and connector selection through to delivery of fully tested, project-specific instruments. Contact us today to discuss your subsea measurement requirements, request datasheets, or arrange a technical consultation.