CEMS solutions

Your Benefits

  • High levels of availability and reliability
  • Modules that are easy to replace during servicing
  • Low costs due to minimal maintenance requirements
  • Servicing support is available globally
  • Quick access to expert support with remote maintenance
  • No expensive test gases thanks to its certified internal drift correction
  • Equipped for existing and future requirements thanks to its rugged design and high level of measurement accuracy


The MARSIC300 ship emissions measuring device from SICK is an innovative solution for reliably measuring emissions on ships according to MARPOL Annex VI and IMO MEPC. The MARSIC300 is type-approved for this application by well-known classification organizations. The MARSIC300 measures both SOx and CO2 upstream and downstream of the scrubbers, and NOx upstream and downstream of SCR (selective catalytic reduction) plants.

As a leading manufacturer of emissions measurement technology, SICK is offering the MARSIC300 as a compact complete system. Designed to be used on ships, the measuring device boasts extremely low maintenance costs and modules that are easy to replace.

At a glance
  • Rugged design and high level of measurement accuracy
  • Type-approved by well-known classification organizations in accordance with MARPOL Annex VI and IMO MEPC
  • Measuring ranges adapted to low and high concentrations of SO2 and NOx
  • Up to 7 measuring components at the same time: SO2, CO2, CO, NO, NO2, NH3, H2O



Intelligent solutions for the shipping industry

As one of the market leaders in onshore emissions measurement technology, SICK has decades of experience in the development of gas analyzers and emissions measurement. In addition, SICK offers a comprehensive portfolio of on-board measurement systems and has many years of experience in maritime applications. The MARSIC300 ship emission measuring device therefore consists of repeatedly proven technology, which has demonstrated its quality and reliability all over the world. SICK now has one of the largest numbers of ship emissions measuring devices installed worldwide and has established itself as one of the leading manufacturers in the area of maritime emission control.

For clean air on the high seas

The MARSIC300 measures CO2 emissions from combustion processes and ship engines. The MARSIC300 also measures methane, which damages the world’s climate. Methane is produced during incomplete combustion of LNG in engines. The sensors from SICK send the measured values from on board directly to the cloud and show the corresponding data, e.g. energy efficiency, in a transparent manner. With the MARSIC300, the ship emission measuring device from SICK, you can sail across all seas with DNV certification, safe in the knowledge that the measured values are reliably accessible in maritime emission control areas. You can also rest assured that device maintenance and calibration costs will stay low in the long term.

Efficient solution that reduces costs

The MARSIC300 has hardly any wear parts or moving parts and can be calibrated using internal calibration filters.

The MARSIC300 pays for itself quickly

The MARSIC300 quickly pays for itself in combination with state-of-the-art exhaust gas purification systems, as it can save costs depending on the type of fuel.

More transparency on the world’s oceans

Internet use on the high seas enables the MARSIC300 to continuously send data to cloud-based solutions. This means that the ship operator can always monitor what the emission measurement device is currently measuring at sea.

Always on a safe course with the right service

With its worldwide network of employees, SICK makes sure that services and spare parts are available. To satisfy its global demand, SICK has established several maritime service hubs to coordinate and actively support its worldwide service activities. In addition, training centers enable the company to pass on its detailed knowledge about the products and their peripherals to customers. Qualified staff from SICK and its partners are ready to serve you along the main global shipping routes. The staff provides technical support, solves problems, helps with preventive maintenance and provides other services for measurement technology.

MARITIME SERVICES from SICK – on site where you need us

We help you help yourself

SICK supports you with regular maintenance with its network of service experts. And with proper training, customers can perform most maintenance activities on their own. If the ship has a changing crew, e-learning is a good way to explain the maintenance tasks that need to be performed. As often as you want, regardless of the time or location.

More transparency on the world’s oceans

In the cloud-based SICK AssetHub, a web service for SICK customers, various SICK sensors can be mapped out and the data from the devices displayed in real time. This means that the ship operator can always monitor what the device is currently measuring at sea. In the event of a problem, such as a clogged filter, the crew as well as the shipping company receives a notification and can initiate appropriate measures.

Global availability for maximum efficiency

Extended warranty, SICK Remote Service, 24-hour help desk, maintenance, availability guarantees and other modular services can be individually combined on request.

All-round service for high availability of your measuring equipment

Spare parts


Service & Support

Technical overview


Please note: The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.

  • MARSIC300 system

    MARSIC300 system

    Measured valuesCO2, SO2, NO, NO2, CO, NH3, H2O
    Measurement principlesNDIR spectroscopy
    Spectral range
    2,000 nm ... 11,000 nm
    Measuring distance
    8.5 m
    Gas flow rate
    200 l/h ... 300 l/h
    Measuring ranges
    CO20 ... 25 Vol.-%
    SO20 ... 30 ppm / 0 ... 2,000 ppm
    NO0 ... 300 ppm / 0 ... 2,000 ppm
    NO20 ... 200 ppm / 0 ... 500 ppm
    CO0 ... 200 ppm / 0 ... 2,000 ppm
    NH30 ... 50 ppm / 0 ... 500 ppm
    H2O0 ... 40 Vol.-%
    Response time (t90)
    ≤ 140 s
    Including sample gas path and gas sampling unit
    < 2 %
    Of measuring range full scale
    Sensitivity drift
    < 2 %: of measuring range full scale per week
    Zero point drift
    < 2 %: of measuring range full scale per week
    Reference point drift
    < 2 %: of measuring range full scale per week
    Detection limit
    < 2 %: of measuring range full scale
    Process temperature
    +10 °C ... +550 °C
    Process pressure
    –20 hPa ... 200 hPa
    Dust load
    ≤ 200 mg/m³
    Ambient temperature
    0 °C ... +50 °C
    Type approved up to 45 °C
    Storage temperature
    –20 °C ... +70 °C
    Ambient pressure
    900 hPa ... 1,100 hPa
    Ambient humidity
    ≤ 90 %

    MARPOL Annex VI and NTC 2008 – MEPC.177(58)

    Guidelines for exhaust gas cleaning systems – MEPC.184(68)

    Guidelines for SCR reduction systems – MEPC.198(62)

    DNV GL Rules for Type Approvals (2012)

    IACS E10 and Rules of major classification societies

    Electrical safetyCE, Rules of major classification societies
    Enclosure rating
    Type of fieldbus integrationTCP
    Type of fieldbus integrationRS-485
    FunctionConnection to OPC server
    LC display
    Status LEDs: "Power", "Maintenance request" and "Fault"
    InputFunctional keys
    OperationVia LC display or SOPAS ET software, multiple operating levels, password-protected
    Dimensions (W x H x D)
    600 mm x 1,300 mm x 434 mm (for details see dimensional drawings)
    120 kg
    Material in contact with mediaStainless steel 1.4547, PTFE, aluminium, coated
    Power supply
    Three-phase current3-phase: 115 V, 50/60 Hz
    3-phase: 208 V, 50/60 Hz
    3-phase: 230 V, 50/60 Hz
    Special configurations with minimal equipment are also possible
    Current consumptionAt 230 V AC: ≤ 14 A
    Power consumptionAnalyzer cabinet: ≤ 1,000 VA
    Sample gas line, heated: ≤ 95 VA/m
    Gas sampling unit: ≤ 450 VA
    Heated probe tube: ≤ 450 VA
    Compressed air≤ 1,300 l/h
    Instrument air: 5 ... 7 bar; particle size max. 1 µm; oil content max. 0.1 mg/m³; pressure dew point max. –40 °C
    Sample gas connections
    Clamping ring fitting for 6 mm pipes
    Auxiliary gas connections
    Compressed airHose connector DN 6/8 and DN 8/10
    Test gasHose connector DN 6/8
    Corrective functions

    Drift correction and optical monitoring function via adjustment cell

    Automatic zero point adjustment with instrument air

    System components

    Gas sampling unit, heated, including filter housing

    Sample gas line, heated (max. 35 m)

    Analyzer cabinet

    Integrated components

    Ejector pump

    Pressure sensors

All technical data can be found accompanying the individual product