Maretron

Maretron NMEA 2000 on-board network monitoring and integration

Maretron

Maretron for NMEA 2000 on-board network monitoring

Maretron modules, N2KView, on-board network monitoring, gateways and NMEA 2000 network expansion

Maretron is a leading brand for NMEA 2000, focusing on smart on-board network management, monitoring, and integration. It's ideal if you want more insight into engines, tanks, bilge, power consumption, and status alerts, with reliable data on your plotter, display, or PC.

Within the range, you'll find modules for switching and measurement, alarms and indicators, gateways to USB or IP, and solutions to expand your NMEA 2000 network step by step. Combine this with software like N2KView for a complete overview, locally or remotely.

View the Maretron product range below and choose the right components for your installation.

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201 products

Maretron: knowing what your boat is doing

Your chartplotter shows where you are. Maretron shows what the rest of the vessel is doing — tanks, fuel burn, batteries, temperatures, water in the bilge, whether a hatch is open. It all runs over the NMEA 2000 network, onto a display of your own or onto your phone from home. Seven groups; pick what you want to see.

Displays and software

Maretron has its own screens, so monitoring does not have to fight for space on your plotter. The TSM810C is an 8-inch touchscreen; the DSM570 (5.7") and DSM410 (4.1") are high-bright displays for a helm; the MBB300C is a black box that drives a monitor of your choice. N2KView is the PC software that builds your own dashboards, and the WSV100 MConnect web server serves them to a browser.

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Tanks and fluid levels

The TLM100 is an ultrasonic tank sender with no moving parts, which is the whole reason to fit one — nothing to stick or corrode the way a float sender does. It handles tanks to 40 inches, roughly a metre, for all liquids including diesel, petrol excepted. For deeper or odd-shaped tanks there is the FPM100 fluid pressure monitor, which reads up to six tanks with submersible pressure transducers, and the TLA100 adapter for existing senders.

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Fuel flow — what you actually burn

A tank gauge tells you what is left. A flow sensor tells you what you are burning right now, which is what lets you find the economical cruise speed instead of guessing at it. The FFM100 monitor works with flow sensors matched to your engine's consumption, from the M1AR at 2–100 litres per hour up to the M16AR at 10–100 litres per minute. There is also a water-in-fuel detector, which is the cheapest insurance against a bad bunkering.

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Batteries, AC and switching

The DCM100 watches your DC batteries — voltage, current, state of charge and time remaining, which is the number that actually matters at anchor. The ACM100 does the same on the AC side, with a 400 A transducer for the heavy circuits, and the CLM100 reads any 4–20 mA sender. For switching there is the CLMD12 MPower 12-channel DC load module and the DCR100 relay module.

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Alarms — the boat that calls you

The ALM100 alarm module and the SIM100 switch indicator are the pair that turn readings into warnings. Around them: the BHW100 water detector for the bilge, the SH-003 smoke and heat detector, magnetic switches for hatches and lockers in surface, recessed and cylinder versions, the TMP100 with exhaust-gas and ambient probes, and the IRHT humidity and temperature sensor for damp lockers.

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Navigation sensors

The WSO200 is an ultrasonic wind and weather station: apparent wind speed and direction, barometric pressure, air temperature and humidity, with no moving parts to wear or foul in the rigging. It carries no compass of its own — pair it with the SSC300 solid-state heading and rate compass for true wind. Plus the GPS200 GPS/WAAS antenna, the DST110 triducer for depth, speed and temperature to 100 metres, and the RAA100 rudder angle adapter.

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Gateways, network and cable

The J2K100 bridges J1939 from a modern engine to NMEA 2000, the USB100 puts the network on a laptop, and the IPG100 makes it reachable over IP — that is how you look at your boat from home. The VDR100 records the whole data stream. Network parts run from single drop cables to 750-metre bulk reels, with metal-shelled Micro-C, Mid and Mini connectors, terminators, tees, bulkhead feed-throughs and the NBE100 bus extender.

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What monitoring actually gets you, and how to plan an installation — open for the detail

Why add this next to a chartplotter?

Because navigation electronics tell you nothing about the boat itself. Most of what goes expensively wrong — a tank run dry, a failing water pump, a bilge slowly filling, a battery bank quietly dying, a fridge that warmed up over a fortnight — gives warning long before it becomes damage, but only if something is measuring it. These modules put the rest of the vessel on the network you already have.

Watching the boat when you are not on it

This is the combination worth planning for. A water detector in the bilge, a temperature probe, a battery monitor, a couple of magnetic contacts on the hatches — and an IPG100 or WSV100 MConnect to make it reachable. Then you look at all of it from home, in N2KView or a browser. For a boat that lies in a berth all winter that is a different proposition from a monthly drive to the marina. Shore power and a stable internet connection at the berth are the two practical conditions; we talk both through before you buy.

Start with the question, not the module

Maretron's range is wide enough that it is easy to buy the wrong thing. Work the other way round: name what you want to know. "How much fuel do I have left" is a TLM100 or an FPM100. "What am I burning at this speed" is an FFM100 with a flow sensor matched to your engine. "Will the batteries last the night" is a DCM100. "Tell me if water comes in while I am at home" is a BHW100 plus a gateway. Send us the question and we will name the module.

Micro, Mid or Mini?

That is cable thickness, chosen on the length of the run and the number of devices. Micro-C is the usual size for pleasure craft, Mid the in-between, Mini the heavy version for long networks on larger vessels. They join with an adapter, but start with one size if you can. Terminators come per size and per gender — that is the detail people order wrong.

The rest of the network rules — one continuous backbone, exactly two terminators, one power feed near the middle, drops under 6 metres each and 78 in total — are on our NMEA 2000 page. Get those right and monitoring modules simply appear on your screen. Get them wrong and you will chase a "faulty sensor" that is not faulty.

AML is an official Maretron dealer. Tell us what you want to keep an eye on — tanks, fuel, batteries, bilge, temperatures, or the whole boat over the winter — and we will put together the modules, display, cable lengths and gateway that answer it. Call +31 (0)55 541 2122 or email verkoop@aml-int.nl.