
Monitor coastal sea levels and harbor depths with a low-power digital interface sensor built to withstand abrasive silts and corrosion in demanding littoral zones.
Environmental consultants conducting hydrodynamic modeling or harbor engineers managing navigable channel depths require high-resolution data that remains stable under the rigors of constant saltwater immersion. The S12C series addresses the specific geochemical challenges of near-shore deployment by utilizing a marine bronze housing, which offers superior resistance to crevice corrosion and biofouling compared to standard 316L stainless steel. This material choice is particularly critical in harbor environments where stray currents and high salinity accelerate metallic degradation. When deployed in shallow littoral zones or attached to jetty infrastructure, the S12C series maintains structural integrity while the ceramic alumina diaphragm provides a robust, abrasion-resistant sensing surface. Unlike softer metallic membranes, this Al2O3 ceramic interface resists the scouring effects of suspended silts and sands common in turbulent tidal channels, ensuring that long-term drift is minimized during multi-year research studies.
The integration of the SDI-12 protocol within the S12C series allows for sophisticated power management in remote monitoring stations, making it an ideal choice for solar-powered telemetry nodes located in isolated coastal reaches. Because the SDI-12 interface supports multi-drop bus configurations, technicians can bridge multiple sensors onto a single data logger port, facilitating vertical profiling of water density or redundant level checks without increasing cabling complexity. The inclusion of a vented PUR cable ensures that the S12C series provides true gauge pressure measurements by automatically compensating for local barometric fluctuations. This atmospheric referencing is essential for harbor masters who must calculate exact under-keel clearance for deep-draft vessels entering tidal ports, where even a few centimeters of measurement error can impact navigational safety and logistical scheduling.
For environmental research focused on coastal erosion and sediment transport, the S12C series provides the precision necessary to capture subtle tidal harmonics and surge events. The vented design eliminates the need for post-processing atmospheric correction, allowing for real-time data streaming to vessel traffic services or public-facing environmental dashboards. By combining the chemical inertness of Viton seals with the mechanical toughness of marine bronze and ceramic, the S12C series thrives in the intertidal zone, where exposure to oxygenated seawater and varying temperatures typically shortens the lifespan of lesser instrumentation. Whether monitoring the impact of ship-induced wake on estuary banks or providing the baseline data for navigational charts, this probe delivers the reliability required for mission-critical marine applications.

S12C SDI-12 Submersible Level Probe
- Pressure Range: 0 to 20
- Units: mH2O
- Range Type: Gauge / Vented (atm to +P)
- Output Signal: SDI12 communications protocol interface
- Housing Material: Marine Bronze (seawater)
- Diaphragm Material: Ceramic Alumina Al2O3
- Media Exposed Seals: Viton
- Cable Type: PUR
- Cable Length: 20
- Cable Length Units: Metres (m)
- Process Connection: G1/4 male DIN3852 with removable nose cone
- Optional Extras: USB converter & logging software
