NMEA 2000 vessel monitoring and control — tanks, batteries, bilges, engines and security, reported from one place.
Monitoring software and cloud
Maretron's software turns the data on a boat's NMEA 2000 network into screens, phone apps and remote access.
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N2KView
Vessel monitoring and control software with customisable screens for engines, tanks, electrics and navigation.
N2KView is the software that draws a boat's systems on screen. You build your own pages from digital readouts, analogue-style gauges, graphs, bar graphs and warning lights, covering engines, generators, tanks, rudders, navigation instruments and weather. It also handles alerts, fuel management, electrical control and video from compatible IP cameras.
It runs on a Windows PC or Mac connected to the NMEA 2000 network through a Maretron USB100 or IPG100 gateway, or standalone on the TSM810C touchscreen and MBB300C black box. A licence key is needed to read sensor data. The N2KView Mobile app extends the same screens to phones and tablets.
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N2KView Mobile
Phone and tablet app for monitoring and controlling boat systems on custom screens.
N2KView Mobile puts a boat's monitoring screens on an Android or Apple phone or tablet. You can watch readings such as AC power, batteries, engines, fuel, tanks, GPS, wind and weather, and switch things like lights, pumps, air conditioning and watermakers where the boat is set up for it. Screens are designed first in the N2KView desktop software and then sent to the device.
Data reaches the app through a Maretron IPG100 gateway, which puts the NMEA 2000 network onto the boat's Wi-Fi. For use away from the boat it works with the Maretron Real Time Cloud Service. The app itself is a free download from the usual app stores.
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N2KTracker
Phone and tablet app showing a boat's position, track and cloud-stored engine and tank data.
N2KTracker is a tracking app for Android and Apple devices that works with the Maretron Telemetric Cloud Service. It shows where the boat is and where it has been on a map, and you can set a geo-fence, a virtual boundary around the boat, with alerts by email or text if it leaves the area.
A dashboard shows stored data such as engine hours, fuel levels, engine parameters and bilge pump run time. It can handle one vessel or a fleet and lets you switch between them. The boat needs an internet connection and hardware that supports the Telemetric Cloud Service, and the service itself needs a subscription.
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Real Time Cloud Service
Subscription service for monitoring and controlling a boat's NMEA 2000 network from anywhere with internet.
The Real Time Cloud Service lets you see and control your boat's systems remotely, using the same N2KView screens you use on board. An IPG100 gateway on the boat logs in to the service automatically whenever the boat has internet, whether through marina Wi-Fi, satellite or a cellular modem. You then view the data in N2KView on a PC or Mac, or in N2KView Mobile.
Setup is done on board: connect a Windows PC to the boat's network, open N2KAnalyzer and enable Maretron Cloud Services in the IPG100 settings. The service is sold as one-year data plans of 25, 50 or 100 GB a month, with a free 90-day trial.
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Telemetric Cloud Service
Cloud storage of onboard sensor data for tracking, maintenance planning and geo-fence alerts.
The Telemetric Cloud Service stores data from a boat's NMEA 2000 sensors so you can look at it from ashore on a computer, phone or tablet. It supports near-real-time tracking, scheduling maintenance, and keeping an eye on fuel use. The free N2KTracker app adds the geo-fence alerts and a dashboard, and the free N2KExtractor PC software exports data to spreadsheets and graphs up to four parameters.
It uses the boat's existing connection, whether cellular, Wi-Fi or satellite, and is designed to use little airtime and cope with patchy coverage. Which data is sent, and how often, is set up on a Maretron touchscreen or black box. A GPS receiver is needed for tracking.
Software needs matching Maretron hardware on the boat, so confirm the gateway or touchscreen before choosing.
Displays, controllers and alarms
Dedicated screens and control hardware that show NMEA 2000 data and run Maretron's monitoring software.
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DSM410
4.1-inch sunlight-viewable colour display for NMEA 2000 data, with a five-key illuminated keypad.
The DSM410 is a compact colour display that shows instrument, navigation and monitoring data from a boat's NMEA 2000 network. It is readable in sunlight, has a five-key illuminated keypad, and can also raise alerts and provide electrical switching. It can show any data on the network except AIS.
It connects directly to the NMEA 2000 network. It shares alert information with DSM570 displays and N2KView installations, so an alert can be acknowledged on any connected device rather than only the one that raised it. A protective cover is available as an accessory, and the DSM410 is also one of the devices used to configure Maretron sensors.
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DSM570
5.7-inch high-resolution colour display with numeric, gauge and graph views and programmable alarms.
The DSM570 is a 5.7-inch colour display for NMEA 2000 instrument and navigation data. Information can be shown as numbers, gauges or graphs, on a single page or several, with cycling between them. A five-key illuminated keypad is used to operate it, and background colours include white, black, red, green and blue.
It supports programmable audible and visual alarms, such as high or low limits, data unavailable, GPS quality, radius and timer alerts. It plugs straight into any NMEA 2000 network and shares alerts with other DSM570 and DSM410 units and N2KView installations. It is built to the IEC 60945 marine equipment standard in a compact waterproof case. A protective cover is an optional accessory.
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TSM810C
8-inch dedicated touchscreen running N2KView for monitoring and controlling vessel systems.
The TSM810C is an 8-inch touchscreen built to run Maretron's N2KView software on its own, with no separate PC. You set up favourite screens showing the information you want, and use touch to control critical systems. It can display AC power, batteries, depth, engines, fuel, GPS, heading, rudder, speed, tanks, wind, weather, watermakers and more.
The 800 x 480 display is bright, with a waterproof front for outdoor mounting, a solid-state disk and no fan. It has two isolated CAN bus connectors for a single or redundant NMEA 2000 network, two USB ports for a keyboard, mouse or trackball, and an Ethernet port for IP cameras viewed within N2KView. Mounting is flush or VESA. A protective cover is an accessory.
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MBB300C
Fanless black-box computer that runs N2KView on a screen of your choice.
The MBB300C is a ruggedised box that runs only Maretron's N2KView software, which keeps it dedicated to monitoring and controlling the vessel. It has a solid-state drive, no fan and draws under 10 W. You supply the display, which connects by VGA or HDMI, plus a touchscreen (USB or serial) or keyboard, mouse or trackball.
Two fully isolated CAN bus connectors allow a single or a redundant NMEA 2000 network, and an Ethernet port takes IP camera video and email alert notifications. It shows categories such as engines, batteries, tanks, depth, GPS, wind, weather and watermakers. It suits installations where the screen is chosen to fit the helm or a bespoke panel.
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MConnect
NMEA 2000 web server and screen editor that shows boat data on multifunction displays or browsers.
MConnect (model WSV100) reads more than 400 NMEA 2000 data points and presents them as web pages. These can be shown on compatible multifunction displays or any device with a browser. A built-in editor offers 87 ready-made layouts, and custom branded graphics are possible for boat builders. Up to four users can view at once.
It has two optically isolated NMEA 2000 connections, plus Ethernet, USB 3.0 and Wi-Fi, and runs from 9 to 32 V DC. It works with MFDs such as Garmin OneHelm and Raymarine LightHouse, and with Maretron Octoplex and MPower digital switching, plus third-party systems using standard NMEA 2000 switching messages.
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ALM100
Waterproof alarm module with a loud sounder and red warning light for NMEA 2000 alerts.
The ALM100 gives a visible and audible alert when a monitored condition trips. It has a piezoelectric sounder rated at 105 dB with 32 selectable patterns, and a bright red LED, with a green LED showing it is powered and ready. It is waterproof, mounts in a standard electrical box or flush on a surface, and can go indoors or outdoors.
It connects to the NMEA 2000 network and can be triggered by N2KView or by DSM570 and DSM410 displays. If more than one ALM100 is on a network, they must be configured using a DSM570, DSM410, USB100 or IPG100. White and black cover plates are available as accessories.
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RKF-001 Remote Keyfob
Wireless remote control with a screw-terminal receiver and waterproof handset.
The RKF-001 is a general-purpose wireless remote control, not an NMEA 2000 device. It uses an FM radio link with a code-hopping security protocol, and has an operating range of up to 60 metres. The receiver wires to standard screw terminals and runs from 12 or 24 V DC. Its relay outputs are rated 5 A at 230 V AC and can be set to momentary or latching.
The receiver can learn up to seven transmitters, and the handset is waterproof to IP68. Transmitters come with one to four buttons, so check which version is wanted when ordering. It suits switching a pump, gate, light or similar load remotely.
Pick the display by how much you want on screen: instrument-style readouts, or a full touchscreen running N2KView.
Gateways, bridges and network tools
Hardware and software for connecting an NMEA 2000 network to computers, engines, the internet and each other.
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IPG100
Internet Protocol Gateway linking the NMEA 2000 network to Ethernet and Wi-Fi for N2KView.
The IPG100 connects a boat's NMEA 2000 network to an IP network, meaning ordinary routers, switches and wireless modems. That lets PCs, Macs, tablets and phones running N2KView monitor and control the boat from on board or from ashore. It has an NMEA 2000 port and an Ethernet data port.
Once enabled it connects automatically to the Maretron Real Time Cloud Service for remote access. It is also one of the devices used to configure Maretron sensors, and works with N2KAnalyzer. Accessories listed are a waterproof USB cover and a waterproof Ethernet cable of about 5 metres. The E2500 router is a companion for onboard Wi-Fi.
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USB100
Waterproof NMEA 2000-to-USB gateway that also outputs NMEA 0183 for PC software.
The USB100 connects a computer to a boat's NMEA 2000 network over USB, so PC software can use the vessel's data. It also converts NMEA 2000 data into NMEA 0183 sentences, the older standard, for navigation programs that still need it. Windows drivers cover XP through Windows 10 and 64-bit Windows 11, but not ARM-based PCs.
It works with Maretron N2KView, PC charting and navigation software, and diagnostic tools such as N2KAnalyzer. It is also one of the devices used to configure Maretron sensors. The housing is compact and waterproof, and it meets the IEC 60945 marine standard.
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J2K100
Converts engine and generator J1939 data to NMEA 2000 so it shows on compatible displays.
Many modern diesel engines and generators send their data on a J1939 network. The J2K100 reads that network and republishes the data in NMEA 2000 format, so it can appear on your instruments. It only listens on the J1939 side and takes no power from it, so it does not interfere with engine control. Power comes from the NMEA 2000 side.
Parameters include revs, engine hours, oil and coolant pressure and temperature, boost pressure, fuel rate, charging voltage, load, gear, and generator AC voltage, current and frequency. Fuel economy figures need a DSM570 or DSM410 and a GPS200. Cordsets for particular engine connectors are available, and configuration uses a DSM570, DSM410, USB100 or IPG100.
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NBE100
Network bus extender that splits one NMEA 2000 network into two linked segments.
An NMEA 2000 network has limits on the number of devices, the trunk length and the total drop cable length. The NBE100 sits in the middle of the trunk and splits it into two electrically separate segments, optically isolated, while passing messages between them so every device behaves as if on one network. The extended limits are up to 100 logical nodes, trunks beyond 200 metres and drop lengths beyond 78 metres.
Each side can have a pass filter that forwards up to 32 chosen message types, or it can act as a full bridge. Terminators are added as needed for the two new segments. It suits large boats, separate navigation and switching networks, and redundant designs.
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N2KAnalyzer V3
Windows software for inspecting, configuring, calibrating and updating NMEA 2000 devices.
N2KAnalyzer is a diagnostic and set-up tool for NMEA 2000 networks. It lists every device on the network with its address, make, model, software version and labels, decodes the messages into readable form, and flags instancing conflicts, the kind of clash that makes a display needle bounce between two sources.
It also configures and calibrates Maretron devices and some third-party ones, updates firmware on supported Maretron products, and saves and restores configurations. It runs on Windows and needs a Maretron USB100 or IPG100 gateway; other makers' gateways are not compatible. It is offered free with purchase of either gateway.
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E2500 Wireless-N Router
Dual-band router pre-configured for N2KView systems with the IPG100.
The E2500 is a Wireless-N router set up at the factory for use with Maretron's N2KView system. It lets PCs running N2KView reach the IPG100 gateway, and, with a black box or touchscreen, it connects IP cameras and video encoders.
It is dual-band, 2.4 GHz and 5 GHz, with four internal antennas, WPA and WPA2 security and four Ethernet ports. It pairs with the IPG100 and MBB300C and with Maretron touchscreens. Ask us to confirm compatibility with the TSM810C before ordering.
Most Maretron software needs either the USB100 or the IPG100 gateway to talk to the boat's network.
Tank level and fluid pressure
Sensors that put fuel, water and waste tank levels, and fluid pressures, onto the NMEA 2000 network.
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TLA100
Adapter that connects ordinary resistive tank senders to NMEA 2000.
The TLA100 lets the tank senders already fitted on a boat show on NMEA 2000 displays. It reads resistive senders in both American (240 to 33 ohm) and European (10 to 180 ohm) types, and can be calibrated for any value from 0 to 300 ohms. It reports tank level, capacity and fluid type for fuel, fresh water, grey water, black water, live well and oil tanks.
It can be calibrated for irregular tank shapes and can still drive analogue gauges. Configuration uses a DSM570, DSM410, USB100 or IPG100, and it works with N2KView. It is a sensible choice when replacing the senders is not wanted.
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TLM100
Ultrasonic tank level monitor for tanks up to 40 inches deep, with no probe inside the tank.
The TLM100 measures how deep the liquid is by timing a sound pulse from the top of the tank, so nothing sits in the fluid. It suits diesel, fresh water, waste water, black water and oil tanks up to 40 inches (1.02 m) deep. For gasoline use the TLM150, and for deeper tanks use the FPM100.
It mounts to a standard SAE J1810 five-hole pattern. Adapters are available for 1.5-inch NPT or 1.25-inch BSP threaded openings, and a focus tube is recommended for planing hulls that run bow-up for long periods. It can be calibrated for irregular tank shapes and reports level over NMEA 2000.
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TLM150
Ultrasonic tank level monitor made for gasoline (petrol) tanks up to 24 inches deep.
The TLM150 is the gasoline version of Maretron's ultrasonic tank sensor. It mounts on top of the tank and times a sound pulse to the fuel surface, so no probe extends into the petrol. It works to a depth of 24 inches (0.61 m) and can be calibrated for irregular tank shapes.
It mounts to the SAE J1810 five-hole pattern, with optional adapters for 1.5-inch NPT or 1.25-inch BSP threads and focus tubes for planing hulls that spend long periods bow-up. It broadcasts level over NMEA 2000 and shows on N2KView, DSM570 and DSM410. A DSM410, USB100 or IPG100 is used to configure it.
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FPM100
Six-channel fluid pressure monitor that also measures level in deep or awkward tanks.
The FPM100 connects up to six pressure transducers, sold separately, to the NMEA 2000 network. Each channel is set up independently, either to report pressure or vacuum (water, oil, hydraulic, steam, compressed air, or a clogged filter) or to measure tank level from a transducer on the bottom of the tank. That makes it useful for deep, irregular or internally baffled tanks that ultrasonic sensors struggle with.
Channels can be calibrated for irregular tank shapes. Maretron's transducers are not approved for gasoline, which needs a separately sourced 4-20 mA transducer approved for that fuel. It pairs with N2KView and any compatible NMEA 2000 display.
Match the sensor to the fluid and tank depth: gasoline, deep tanks and standard tanks each have a different Maretron option.
Engine and general sensors
Interfaces for fuel flow, 4-20 mA transducers and other engine-room measurements.
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FFM100
Fuel flow monitor that turns flow sensors into NMEA 2000 fuel-use data.
The FFM100 reads flow sensors fitted in a fuel line and publishes the result on NMEA 2000. The sensors use positive displacement metering with built-in temperature sensors for compensation, and the system detects brief reverse flow in a line and does not count it as consumption. It records trip and total accumulated volume.
Diesel installations typically need two sensors of the same size, one on supply and one on return; gasoline typically needs one, or two if there is a return line. Sensors are sold separately and chosen by flow range and fuel line size. With a GPS it can feed fuel economy displays. It works with N2KView and any compatible display.
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CLM100
Six-channel interface for 4-20 mA industrial transducers.
Many industrial sensors report their reading as a current between 4 and 20 milliamps. The CLM100 has six channels, each set up separately, that convert those signals into NMEA 2000 data. Measurements can include pressure, temperature, humidity, flow, force, angle, voltage and rotation rate, depending on the transducer you connect.
Typical uses include accelerometers, vibration sensors, rotation sensors and load-cell pins. Maretron pressure transducers, a pressure snubber and an indoor humidity and temperature sensor are listed as accessories. Readings show on Maretron displays and in N2KView. The CLM100 is the route for adding a sensor that has no NMEA 2000 version.
For engines with a J1939 data port, see the J2K100 gateway as well.
Electrical monitoring and relays
Modules that measure AC and DC power, switch circuits and report whether equipment is running.
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ACM100
Monitors AC voltage, current, frequency and power from shore power or a generator.
The ACM100 measures an AC source such as a power bus, generator or shore connection and sends the figures to the NMEA 2000 network. It reports voltage, current, frequency, real power, reactive power, apparent power, power factor and total energy imported and exported.
Current is sensed with an AC transducer, supplied separately in 100 A or 400 A sizes. Depending on the application it may need configuration with a DSM570, DSM410, USB100 or IPG100. It shows on those displays and in N2KView, where it is part of the electrical monitoring set.
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DCM100
Monitors voltage and current of batteries, alternators, solar and other DC sources and loads.
The DCM100 measures DC voltage and current on a battery, alternator, solar panel, wind generator, inverter, windlass or branch circuit. On a battery it also reports ripple voltage, case temperature, state of charge, time remaining and a charge efficiency factor.
Current is measured with a Hall effect sensor that clips over the wire, so there is no need to break the cable or fit a shunt. A ring temperature probe attaches under a battery terminal bolt. It must be configured, using a DSM410, USB100 or IPG100, and shows on NMEA 2000 displays and N2KView.
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DCR100
Six-channel DC relay module for switching loads over NMEA 2000.
The DCR100 gives six relay outputs, each rated up to 10 A, that you can switch on and off from the network. It also reports the current through each channel and shuts down on over-current or over-temperature. It can switch lights, pumps and motors, and AC circuits through external relays.
Channels can also be set as annunciators to drive an external light or horn when an alert triggers. Control is from DSM570 or DSM410 displays and N2KView or N2KView Mobile on board, and via the Real Time Cloud Service remotely. If several DCR100, RIM100 or SIM100 modules share a network they need configuring.
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RIM100
Run indicator module reporting whether AC or DC circuits are energised.
The RIM100 watches electrical circuits and tells the network whether each one is energised. It works with manually switched loads, such as navigation, anchor or deck lights, and with automatic ones such as bilge pumps, fans and transfer pumps, so you can see at the helm that a pump actually ran.
With the water-in-fuel detector accessory it can also flag water in a fuel system. It connects to NMEA 2000 and shows on compatible displays and in N2KView. When two or more DCR100, RIM100 or SIM100 modules are on a network, configuration with a DSM570, DSM410, USB100 or IPG100 is required.
Most of these modules need a DSM570, DSM410, USB100 or IPG100 for set-up when more than one of a kind is on the network.
MPower digital switching
Solid-state switching that replaces conventional wiring looms and panels with NMEA 2000 controlled circuits.
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CLMD12
12-channel DC load controller with dimmable electronic circuit breakers.
The CLMD12 controls twelve DC circuits through electronic circuit breakers switched over NMEA 2000, replacing a traditional breaker panel behind the scenes. It reports the current in each circuit, which helps spot a fault or a burnt-out bulb, and shuts a circuit down on overcurrent or overheating. Breakers can be locked, set to power up on, off or as they were, and paralleled.
Two outputs handle 12 A, six handle 10 A and four 5 A, for 75 A in total. Seven inputs can switch breakers or read items such as bilge alarms and hatches. It is sealed to IP67. Pair it with the CKM12 keypad, VMM6 rocker switch module or the CBMD12 manual bypass.
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CLMD16
16-channel DC load controller for larger loads, with reversing circuits and I/O.
The CLMD16 is the larger load controller: sixteen dimmable electronic circuit breakers, four rated to 25 A and twelve to 12 A, for 125 A in total. It reports current per circuit, shuts down on overcurrent or overheating, and supports two reversing-polarity circuits for things like hatches, passerelles and trim tabs.
It also has capacitive touch switches for local control and inputs for eight discrete signals, two resistive sensors, one 4-20 mA loop and three tank levels. Power-up states are configurable and breakers can be locked. It is sealed to IP67 and communicates over NMEA 2000.
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CBMD12
Manual bypass module giving switch control of 12 loads if the network or CLMD12 fails.
The CBMD12 is a backup for the CLMD12. It provides manual on/off control of up to twelve loads, so key circuits can still be switched if the CLMD12 or the NMEA 2000 network fails. It uses standard ATC blade fuses and Carling Curvette rocker switches.
Capacity is 75 A at 12 or 24 V DC, with two outputs at 12 A, six at 10 A and four at 5 A. It does not support paralleled outputs or dimming. It is installed together with a CLMD12, and a version with a jumper wire and fuse pack is offered.
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CKM12
12-button customisable keypad with illuminated buttons for MPower loads.
The CKM12 is a sealed keypad with twelve buttons, laser-etched legends and an LED on each button. The LEDs also show diagnostics when a fault is found. Buttons are dimmable and can be programmed to control any Maretron digital switching load. The front panel is rated IP69K, so it can be fitted inside or outside the cabin, and it mounts vertically or horizontally.
It talks over NMEA 2000 and ships with a 0.2 m adapter cable. Third-party systems can use it through the standard NMEA 2000 binary status message. Two button-marking styles are listed, and custom legends can be requested from the factory.
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VMM6 Contura Switch Module
Sealed six-rocker digital switch module using Carling Contura rockers.
The VMM6 is a sealed switch panel with six Carling V-Series Contura rocker positions that sends switching commands over NMEA 2000, instead of running heavy cable to each switch. LEDs show circuit state, and you get tactile and audible feedback. It mounts horizontally or vertically and is sealed to IP68 with the plug in the unused socket.
Typical uses are navigation lights, boarding lights and area lights. Off-the-shelf versions differ in rocker style and in whether the right-hand switch is momentary or three-position. A 0.2 m adapter cable to NMEA 2000 is included. It works with the CLMD12 and CLMD16 load controllers.
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MPower Quick Configuration Packages
Ready-made configuration files for common MPower switching pairings.
These are downloadable configuration files for common MPower setups, so a standard system does not need programming from scratch. Each package is a zip file with a file for every device, loaded onto the hardware using N2KAnalyzer V3.
Six packages are listed: a CKM12 keypad with a CLMD12, a VMM6 with a CLMD12 (with the right-hand switch as two-position or three-position), and the same three pairings with a CLMD16. They are software files, not hardware, and apply only to those listed combinations.
A typical system pairs a load controller with a keypad or switch module; the quick configuration packages cover common pairings.
OctoPlex power distribution
Network-controlled AC and DC distribution, monitors and displays for larger vessels, with dual CAN bus redundancy.
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OctoPlex AC Power Distribution Unit
AC panel with remotely controlled hydraulic-magnetic breakers, in 8, 13 or 19 positions.
This unit houses remotely controlled hydraulic-magnetic circuit breakers for AC distribution, from 1 to 100 A. Remote control is through external solenoids, and each breaker can also be operated by hand. A processor controls each breaker's state and talks to a dual CAN bus network.
It handles single-phase 120 V (or 230 V), split-phase 120/240 V, or three-phase supplies. It has two Micro-C CAN connectors, is NMEA 2000 Category B, must be mounted vertically, and operates from -40 to +55 degrees C. Approvals include Lloyd's Register type approval, CE and IEC 60533 and 60945.
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OctoPlex DC Power Distribution Unit
DC distribution unit with electronic circuit breakers up to 30 A, rated to 100 A in total.
The DC unit distributes up to 100 A in total and protects loads with electronic circuit breakers of up to 30 A each. It uses two host processors, one for the breakers and one for the CAN networks, and has two Micro-C connectors for the dual CAN bus. It accepts 10 to 32 V DC.
It comes in 8-circuit and 16-circuit versions, so confirm which is wanted when ordering. It is NMEA 2000 Category B, operates from -40 to +55 degrees C, and lists Lloyd's Register type approval, CE and IEC 60533 and 60945.
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OctoPlex AC Power Monitor
Measures voltage, current and frequency on single- or three-phase AC inputs.
The AC Power Monitor measures voltage, current and frequency on AC inputs, such as shore power and generators, so the figures can be read on the boat's NMEA 2000 displays. It supports up to four single-phase, single-line inputs, two single-phase dual-line inputs, or one three-phase, three-line input. It accepts 90 to 264 V at 50 or 60 Hz.
It has dual CAN connections for redundancy, meaning the network keeps working if one side fails, with two Micro-C connectors, and is NMEA 2000 Category B. Operating temperature is -40 to +70 degrees C. It lists Lloyd's Register type approval, CE and IEC 60533 and 60945.
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OctoPlex Battery Monitor
Measures one current, two DC voltages and up to four battery temperatures.
The Battery Monitor reads one current, two DC voltages and up to four individual battery temperatures and publishes them on NMEA 2000, so battery condition can be watched from a display. Current measurement needs a 200 A, 50 mV shunt on the high side, a shunt being a precision resistor the current flows through, and a dedicated cable harness connects to the batteries.
It powers from 12 to 30 V DC and has a single Micro-C CAN connector. It belongs to the OctoPlex G2 series and sits alongside the other OctoPlex monitors and distribution units.
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OctoPlex Multi-Function Display
8-inch touchscreen running N2KView for the OctoPlex system.
This is an 8-inch touchscreen (part number A3419) that runs N2KView so you can monitor and control the boat, including the OctoPlex distribution units. You set up favourite screens for critical systems. It is ruggedised, with solid-state storage and no fans, and dissipates about 10 W.
It runs from 10 to 32 V DC, loads the NMEA 2000 network with one LEN (load equivalence number, a measure of current draw, 50 mA) and has USB 2.0 and 3.0 ports. The front is waterproof to IP66 with a high-brightness screen for outdoor mounting. Resolution is 800 x 480, and it operates from -20 to +55 degrees C.
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OctoPlex Network Power Supply
Regulated 15 V DC supply for the OctoPlex dual CAN network, with AC and DC inputs.
The Network Power Supply provides the regulated 15 V DC that powers the OctoPlex dual CAN network, the data backbone the monitors and distribution units use. It has one AC input and two DC inputs, for redundancy. The DC inputs accept 18 to 36 V, and two CAN connectors carry the output.
Two versions are listed by AC input voltage, one for 90 to 126 V and one for 220 to 264 V. It operates from -40 to +70 degrees C, is NMEA 2000 Category B, and lists Lloyd's Register type approval, CE and IEC 60533 and 60945.
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OctoPlex System Interface Unit Monitor
Monitors up to 34 digital inputs for status, such as switches and alarms.
The System Interface Unit Monitor watches up to 34 digital (discrete DC) inputs and reports their status over the OctoPlex network, for example whether a switch, float or alarm contact is open or closed. Each input can be set for ground, 12 V or 24 V signals. It can also be configured for discrete input and output work alongside the AC and DC distribution units.
It runs from 10 to 32 V DC, has two Micro-C CAN connectors and is NMEA 2000 Category B. Operating range is -40 to +70 degrees C. It lists Lloyd's Register type approval, CE and IEC 60533 and 60945.
OctoPlex is a system for boat builders and larger vessels; these units are normally specified together.
General systems monitoring
Modules for rudder angle, temperature, switch inputs and data logging.
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RAA100
Adapter that connects a resistive rudder angle sender to NMEA 2000.
The RAA100 takes the signal from a resistive rudder angle sender and publishes rudder angle and rudder order on NMEA 2000, so you can read it on compatible displays. It handles American (240 to 33 ohm) and European (10 to 180 ohm) senders and can be calibrated for any value from 0 to 300 ohms. It can also drive existing analogue gauges.
It wires to the sender on one side and the NMEA 2000 network on the other. It works with N2KView and DSM570 and DSM410 displays, and firmware is updated with N2KAnalyzer on a PC with an approved gateway.
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SIM100
Switch indicator module that reports contact status from detectors and sensors.
The SIM100 reads switch-closure devices and broadcasts their state on NMEA 2000. Examples include heat, smoke, carbon monoxide and gas detectors, bilge high-water sensors, magnetic door and hatch switches, motion and glass-break sensors and vacuum switches. It can detect loss of power to the monitored device or a disconnected signal wire.
It works with DSM570, DSM410 and N2KView. Sets of DCR100, RIM100 or SIM100 modules on one network need configuring. Matching detectors and switches are listed as accessories.
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TMP100
Six-channel temperature monitor for cabins, engine rooms, fridges and exhausts.
The TMP100 reads up to six external temperature probes: four thermistor channels and two high-temperature thermocouple channels. It publishes readings on NMEA 2000. Typical uses listed are cabin, engine room, refrigerator and freezer, under-bolt, tank, air duct and exhaust gas temperature.
Probes are sold separately: ambient air, immersion, exhaust gas thermocouple and ring types, each covering its own temperature range, so choose the probe to suit the spot being monitored. A thermocouple is the kind of probe used where it gets very hot, such as an exhaust. It works with N2KView and any compatible NMEA 2000 display, and firmware is updated with N2KAnalyzer.
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VDR100
Vessel data recorder that logs NMEA 2000 messages to a USB flash drive.
The VDR100 records messages from every device on the boat's NMEA 2000 network onto a removable USB flash drive, using a circular buffer so the oldest data is overwritten only when the memory is full. Uses include performance analysis, preventive maintenance, network diagnostics, warranty incidents and accident investigation.
The free N2KExtractor software exports the data to comma-delimited files. A 16 GB flash drive is supplied and an example is about 5 GB per week on a moderately loaded system. The case is waterproof and designed to IEC 60945.
Pick the module by what you want to watch; each reports to NMEA 2000 displays and N2KView.
NMEA 2000 cables and connectors
Backbone cable, tees, terminators and connectors for building an NMEA 2000 network in Micro/Mid or Mini formats.
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NMEA 2000 cables and connectors
Bulk cable, cordsets, tees, terminators and field-attachable connectors in Micro/Mid and Mini series.
This range covers the physical parts of an NMEA 2000 network. In the Micro/Mid series there is bulk cable, double-ended and single-ended cordsets, field-attachable connectors (straight and 90 degree), tees, powertap tees, termination resistors, bulkhead feed-throughs, a multiport box and cable starter kits.
The Mini series has bulk cable, field-attachable connectors, cordsets, tees, a powertap, termination resistors, gender changers, a reducer and a bulkhead feed-through. A backbone needs a terminator at each end and a power connection.
Specify the layout when requesting a quote.
Maretron builds NMEA 2000 monitoring and control hardware: sensors, displays and gateways that put every system on the boat onto one network and report it in one place. Tank levels, battery state, bilge activity, engine data, temperature, shore power and security, live.
What we do with it
- Work out what is worth monitoring. A full sensor fit is rarely the right answer. The useful questions are usually narrow: is the bilge cycling more than it should, is the bank actually recharging, did shore power drop while nobody was aboard.
- Put it on the existing network. Maretron is NMEA 2000, so on most boats it joins the backbone the Raymarine electronics already use rather than needing one of its own.
- Make it reportable remotely. This pairs directly with our guardianage work: a monitored boat tells you it has a problem instead of waiting for the next scheduled visit to find it.
Getting a price
Tell us what you want to know about the boat and from where. We will scope the sensors and the gateway, quote the installation, and set the alerting up so it reaches you rather than sitting on a screen nobody is looking at.
Send an enquiry or call the shop on +1 868 634-2203. Back to all brands.