For over half of a century, NOSHOK and KING-GAGE, A NOSHOK Company, have been providing custom Measurement Solutions to the Marine industry, helping vessel owners, operators and shipbuilders improve safety, stability, and operational efficiency across demanding onboard environments.
From ballast-tank level monitoring and draft measurement to fuel-oil, lube-oil and service-tank management, NOSHOK delivers rugged marine instrumentation engineered for accuracy, repeatability, and long-term reliability in harsh shipboard applications. Our portfolio includes tank level measurement systems, multiple tank indicators, electronic column indicators, hydrostatic purge-control systems, electronic transmitters, and vessel-management interfaces that integrate seamlessly into modern marine monitoring platforms and control systems.
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Reliable ballast-tank level measurement and control is essential to vessel stability, trim correction and ballast-water management. NOSHOK and KING-GAGE provide continuous level gauging, centralized indication and hydrostatic measurement technologies that stand up to demanding marine environments while helping crews improve visibility, reduce manual checks and maintain safe vessel operation.
| Challenge | NOSHOK Solution | Purpose |
|---|---|---|
| Continuously monitoring ballast-tank levels across multiple tanks | Tank Level Measurement System (contact NOSHOK for technical assistance), Submersible Level Transmitters, Radar Level Transmitters |
Provides continuous real-time measurement of multiple ballast tanks to support stable vessel operation. |
| Providing centralized ballast indication where multiple tank readouts are required | Multiple Tank Indicator With Optional Set Point Controller (contact NOSHOK for technical assistance) |
Delivers compact multiple-tank indication for ballast-water applications and improves crew visibility from a central location. |
| Giving operators quick visual recognition of changing tank levels | Provides clear visual indication that helps operators recognize tank status at a glance. | |
| Measuring ballast level using hydrostatic downpipe methods in marine environments | Enables dependable hydrostatic tank-level measurement using downpipe sensing for challenging marine ballast applications. |
Accurate draft data is critical for safe loading, navigation and fuel-efficient vessel operation. NOSHOK and KING-GAGE offer draft-monitoring solutions that combine hydrostatic measurement, centralized indication and system-level visibility to help operators monitor bow and stern draft conditions in real time.
| Challenge | NOSHOK Solution | Purpose |
|---|---|---|
| Measuring ship's draft with dependable hydrostatic sensing | Provides electronic output for draft measurement to support safe vessel operation and loading awareness. | |
| Displaying draft values alongside tank information on centralized marine systems | Tank Level Measurement System (contact NOSHOK for technical assistance), |
Provides graphical display of draft and tank information for broader vessel-management visibility. |
| Providing compact indication of draft points in multi-channel installations | Multiple Tank Indicator With Optional Set Point Controller (contact NOSHOK for technical assistance) |
Supports draft indication in applications where centralized multi-point visibility is needed. |
| Improving operator response through clear visual draft status | Offers bright visual indication that helps crews quickly assess changing draft-related conditions. |
Marine vessels depend on accurate tank-level information to maintain fuel supply, protect engines and generators and support orderly onboard operations. NOSHOK and KING-GAGE provide multi-tank indication, real-time level gauging and centralized display solutions that improve fluid visibility and reduce reliance on manual sounding.
| Challenge | NOSHOK Solution | Purpose |
|---|---|---|
| Monitoring multiple fuel-oil, lube-oil and service tanks from a central station | Tank Level Measurement System (contact NOSHOK for technical assistance) |
Provides graphical display and real-time visibility for service and consumable tanks across the vessel. |
| Providing compact indication for fuel oil and other marine utility tanks | Multiple Tank Indicator With Optional Set Point Controller (contact NOSHOK for technical assistance) |
Delivers centralized indication for multiple marine tanks with a practical, space-efficient interface. |
| Giving operators immediate visual confirmation of changing tank levels | Improves tank-level recognition and helps crews identify abnormal conditions more quickly. | |
| Supporting dependable tank gauging using hydrostatic measurement methods | Differential Pressure Purge Control Level Transmitter and hydrostatic downpipe sensing systems |
Provides stable level measurement in marine tank applications where hydrostatic gauging is preferred. |
Modern marine operations benefit from centralized monitoring of tank levels and draft conditions across ballast, utility and service systems. NOSHOK and KING-GAGE solutions provide graphical displays, process indication and multi-tank visibility that support faster decisions, improved coordination and better vessel awareness.
| Challenge | NOSHOK Solution | Purpose |
|---|---|---|
| Integrating multiple tank and draft inputs into a centralized vessel view | Tank Level Measurement System (contact NOSHOK for technical assistance) |
Provides graphical display of multiple tanks and vessel draft for marine vessel system management. |
| Providing compact local or control-room indication across multiple marine channels | Multiple Tank Indicator With Optional Set Point Controller (contact NOSHOK for technical assistance) |
Delivers multi-point indication for ballast water, fuel oil, potable water and draft measurement. |
| Improving operator awareness with easy-to-read local visual indication | Offers bright graphical level indication for key marine tanks and system points. | |
| Connecting level measurement to monitoring and control infrastructure | Hydrostatic Level Transmitters (Submersible Level Transmitters, Cage-Protected Submersible Level Transmitters, Intrinsically Safe Submersible Liquid Level Transmitters), Differential Pressure Purge Control Level Transmitter |
Enables integration with receivers, alarm panels and onboard monitoring systems. |
Utility and waste-system tanks require dependable monitoring to support vessel operations, crew safety and environmental compliance. NOSHOK and KING-GAGE provide level gauging, indication and hydrostatic measurement technologies suitable for fresh water, grey water, bilge and holding-tank applications across marine vessels.
| Challenge | NOSHOK Solution | Purpose |
|---|---|---|
| Continuously monitoring potable-water and utility-service tank levels | Single and multiple tank indication / measurement platforms (contact NOSHOK for technical assistance) |
Provides centralized visibility into freshwater and service-tank levels for routine onboard operation. |
| Monitoring grey-water, bilge and holding-tank conditions | Hydrostatic downpipe sensing systems and D/P Purge Control, Hydrostatic Level Transmitters (Submersible Level Transmitters or Cage-Protected Submersible Level Transmitters), or a High Accuracy Fixed Range Transmitter mounted externally on the tank |
Delivers dependable measurement for utility and waste-system tanks where continuous monitoring is needed. |
| Providing quick local visual status for critical utility tanks | Improves local recognition of changing tank conditions and supports faster operator response. | |
| Supporting onboard air quality for pneumatic marine gauging systems | Air-Guard Bronze 20 SCFM Filter, Air-Guard Bronze Air Control Station 20 SCFM and 60 / 80 / 100 SCFM Filters |
Helps maintain clean, dry instrument air and supports reliable long-term operation of pneumatic systems. |
Modern marine operations rely on clear, consolidated control panels to monitor tank levels, draft conditions and critical utility systems from the bridge, engine room or centralized control stations. NOSHOK and KING-GAGE control panel instrumentation brings together indicators, transmitters, switches, valves and air-management components into robust assemblies designed for challenging marine environments. These panels help crews see key process values at a glance, streamline alarm and interlock functions, and simplify maintenance and troubleshooting across ballast, fuel, water and vessel-management systems.
| Challenge | NOSHOK Solution | Purpose |
|---|---|---|
| Combining multiple tank and draft measurements into a single marine control panel | Tank Level Measurement System (contact NOSHOK for technical assistance), Multiple Tank Indicator With Optional Set Point Controller (contact NOSHOK for technical assistance) |
Provides centralized visibility of ballast, fuel, water and draft conditions to support faster, better-informed vessel decisions. |
| Interfacing marine instrumentation with existing shipboard monitoring and automation systems | KING-GAGE Level Transmitters and Differential Pressure Purge Control Level Transmitters |
Enables seamless connection to vessel management, PLC and alarm systems through standard electronic outputs and hydrostatic measurement methods. |
| Managing pneumatic and hydrostatic level signals for downpipe and purge-control systems | Differential Pressure Purge Control Level Transmitter, KING-GAGE Bronze Marine Filters, and Bronze Air Control Stations |
Provides organized, serviceable control of instrument air and hydrostatic signals for reliable tank and draft measurement. |
| Reducing installation time and wiring complexity for newbuilds and retrofit projects | Pre-engineered approach using KING-GAGE Tank Level Measurement System (contact NOSHOK for technical assistance), Multiple Tank Indicators (contact NOSHOK for technical assistance), Hydrostatic Level Transmitters (Submersible Level Transmitters, Cage-Protected Submersible Level Transmitters), Differential Pressure Purge Control Level Transmitter, and NOSHOK Instrument Valves |
Shortens installation time, reduces field wiring errors and simplifies commissioning on marine vessels. |
| Supporting long-term reliability in corrosive, high-vibration marine environments | Wide range of 316 Stainless Steel Pressure Gauges and Pressure Transmitters, KING-GAGE Bronze Marine Filters, and KING-GAGE Level Transmitters |
Improves long-term durability of instrumentation, reducing unplanned downtime and maintenance in demanding shipboard conditions. |
| Providing convenient access for calibration, isolation and maintenance | NOSHOK Needle & Manifold Valves, block and bleed valves |
Simplifies calibration and service while helping crews work safely and efficiently on critical measurement points. |
KING-GAGE tank level measurement systems are engineered for long-term performance in demanding marine environments, from ballast-water service to utility and service tanks. They provide continuous real-time measurement, graphical multi-tank visibility and dependable operation for a wide range of vessel applications.
Equipment: Tank Level Measurement System
Application: Ballast tanks, service tanks, marine vessel system management and vessel draft monitoring.
Purpose: To provide continuous real-time tank-level and draft visibility across marine systems for improved vessel awareness and operational control.
KING-GAGE multiple-tank indicators provide practical, centralized readout for marine tanks and draft points where operators need compact, dependable visibility. They are well suited for ballast water, fuel oil, potable water and other shipboard utility applications.
Equipment: Multiple Tank Indicator
Application: Ballast water, fuel oil, potable water and draft measurement requiring centralized multi-point indication.
Purpose: To provide compact, readable tank-level and draft indication that improves onboard awareness and supports everyday marine operations.
KING-GAGE hydrostatic and purge-control solutions provide dependable measurement for marine tanks and draft-monitoring points using downpipe and differential-pressure techniques. These solutions are suited for onboard environments where proven hydrostatic gauging methods are preferred.
Equipment: D/P Purge Control, hydrostatic downpipe sensing systems, submersible and intrinsically safe submersible level transmitters
Application: Ballast tanks, service tanks, utility tanks and ship's draft measurement.
Purpose: To provide stable hydrostatic level and draft data for monitoring, indication and integration into marine systems.
KING-GAGE indication platforms help operators see tank-level conditions quickly and manage vessel systems more effectively. These products support graphical display, process indication and system-wide visibility across ballast, service and utility applications.
Equipment: Electronic Column Indicator, Process Indicators
Application: Tank level, draft monitoring and vessel management for ballast water, fuel oil, fresh water, lube oil, brine, preload and holding applications.
Purpose: To improve visibility, speed operator recognition and support centralized marine monitoring.
KING-GAGE marine filters and air-control components support the reliable operation of pneumatic marine gauging systems by helping maintain clean, dry instrument air. These products are engineered for marine environments and support long-term serviceability.
Equipment: Bronze Marine Filters, Bronze Air Control Stations, 60 / 80 / 100 SCFM Filters
Application: Instrument-air filtration and conditioning for marine level and draft gauging systems.
Purpose: To protect pneumatic measurement components, improve system reliability and support stable long-term marine operation.

WARNING:This product can expose you to chemicals including Lead and Nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
A: Marine level and draft instrumentation is used across a range of onboard tanks and measurement points, including ballast tanks, fuel-oil tanks, lube-oil tanks, service and day tanks, potable-water tanks, grey-water and sewage holding tanks, and bilge tanks, as well as draft monitoring at the bow and stern. These measurements support vessel stability, safe loading and unloading, equipment protection, environmental compliance, and efficient onboard operations through both continuous level monitoring and draft verification.
A: Ballast-tank level monitoring is essential for maintaining safe operating conditions, vessel trim and transverse stability throughout a voyage. Accurate ballast-level data also supports ballast-water management procedures and helps crews make informed loading and discharge decisions.
A: Draft measurement provides operators with continuous information about how deeply a vessel sits in the water at the bow and stern. This helps support safe navigation, loading compliance, trim optimization and fuel efficiency by ensuring the vessel is operating within intended draft limits.
A: Real-time tank-level monitoring gives operators immediate visibility into ballast, service and utility tank conditions without relying on manual soundings. This improves operational awareness, reduces time spent on routine checks and helps crews respond faster to abnormal tank conditions or alarm events.
A: Centralized tank indication allows operators to view multiple tank levels and draft conditions from a bridge, control room or engine room display. This simplifies vessel monitoring, improves response time and helps crews manage ballast, service fluids and stability conditions more efficiently.
A: Electronic level and draft systems provide continuous measured data directly to indicators and control interfaces, reducing the need for manual checks at each tank. This can improve crew safety by limiting access to confined or difficult-to-reach spaces while also saving time during routine operations.
A: Important factors include the type of liquid being measured, tank geometry, vessel motion, temperature variation, required indication points, alarm needs and compatibility with shipboard control systems. Environmental conditions such as vibration, moisture and corrosive atmospheres should also be considered.
A: Continuous tank-level monitoring helps prevent low-level conditions that could starve pumps, engines or generators of required fluids. It also helps avoid overfill situations, supports orderly transfer operations and improves overall visibility into onboard fluid management.
A: Tank-level and draft data provide the information needed to coordinate ballast adjustments, monitor cargo effects on trim and maintain vessel stability throughout loading and unloading operations. Reliable measurement helps operators make faster, better-informed decisions during changing operating conditions.
A: Yes. Modern marine measurement systems can provide signals to centralized displays, alarm panels and vessel management or automation systems. This supports more efficient monitoring, better recordkeeping and improved coordination across onboard systems.
A: Useful application details include the type of tank, liquid properties, tank dimensions, expected operating range, mounting location, alarm requirements, desired indication points and any needed integration with onboard control systems. Clear application information helps ensure the selected solution fits the vessel and operating environment.