Tank Monitoring (TLM100) - Intermediate System

MSRP $4,148.20

Network Diagram
  • Overview
  • Documentation
  • Application Diagrams
  • DSM250 Screenshots
  • N2KView Mobile Components

This intermediate tank monitoring system monitors six tanks using Maretron’s 5.7” color display, and 6 Tank Level Monitors (TLM100). The system can be calibrated for odd shaped tanks so you get precision tank level information. And since the tank capacity is programmable, you can see exactly how many gallons remain in the tank. You can even combine different tanks into a single gauge or display, eliminating the need to continually perform mental calculations. The Ethernet gateway allows you to view tank information on a smartphone or tablet so you can observe tank levels while re-fueling from the dock.

The following table shows the products included within this example system plus a list of the information or data available for display.

Product Description Available Data List
DSM250 Helm Pod Display Displays data in this list, monitors the data and sounds an internal buzzer if there is a problem
TLM100 Tank Monitor Monitors level in a tank
IPG100 N2K to ethernet NMEA 2000 to ethernet gateway
E2500 Wifi router Allows monitoring wirelessly or wired onboard, or remotely with internet connection


The following screenshots (click to enlarge) are examples of how the bilge status will be displayed on the DSM250.

Fresh Water Gauges

Fuel Gauge

Fuel Remaining in Tanks and Total

Fuel Tank Gauges and Total

Fuel Total Level Gauge

Gray and Black Water Gauges

The following components (click to enlarge) are examples of how monitored data can be displayed on a PC, tablet or smartphone using N2KView or N2KView Mobile. The components are arranged on favourite screens at positions and sizes to suit the user's needs. See N2KView web page for exampes of full screenshots.

Afternoon Twilight

Black Water Tank Gauge


COG Digital

COG Head Up Rose

COG North Up Rose

Course Over Ground Digital

Fresh Water Digital

Fresh Water Tank Gauge

Fresh Water Total Tank Gauge

Fuel Level Tank

GPS Status

Lat and Long

Lat and Long Degrees

Lat and Long DMS

Local Date

Local Date DMY

Local Date MDY

Moon Phase

Speed over Ground Digital

Speed over Ground Gauge


Total Fuel Remaining

UTC Time