Tank Level Monitor (TLM200), 80"

Model # 11115664 | Mfg # TLM200-01 | UPC # 873804000244

This item is no longer available.

The TLM200 is used to sense levels of liquid tanks using ultrasonic technology and transmit the liquid levels over the NMEA 2000® network. This allows you to observe tank levels anywhere on the vessel where there is an NMEA 2000® compatible display such as the Maretron DSM250. The TLM200 is capable of sensing tanks up to 104" (2.64m) in depth. It can be used for diesel, fresh water, grey water, black water, and oil tanks. Unlike most tank senders that only work with rectangular tanks, the TLM200 can be calibrated for irregular tank shapes so you know the true level of your tanks. The TLM200 can be mounted on tanks with a SAE J1810 5-hole mounting pattern, or to tanks using 1.5" NPT or 1.25" BSP threaded openings via available adapters. The TLM200 has an optional airlock for black water applications to keep the face of the ultrasonic transmitter from fouling.

The Maretron TLM200 is designed to operate within the harsh demands of the marine environment. However, no piece of marine electronic equipment can function properly unless installed, calibrated, and maintained in the correct manner. Please read carefully and follow these instructions for installation, calibration, and usage of the Maretron TLM200 in order to ensure optimal performance.

The TLM200 is NOT intended for use in tanks containing gasoline. Use in tanks containing gasoline will void the product warranty.

The Maretron TLM200 has the following features:

  • Transmits liquid levels over an NMEA 2000® Interface
  • Integrated ultrasonic level sensor
  • Can be used in tanks up to 104" deep
  • SAE J1810 5-hole, 1.5" NPT, or 1.25" BSP Mounting
  • Accommodates Irregularly Shaped Tanks with 16 Point Calibration
  • 16 Programmable Tank Types Including Fuel, Fresh Water, Waste Water, Live Well
  • Programmable Tank Number(s) Up to 16 per Tank Type
  • Programmable Tank Capacity
 WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information, go to


Tank Level Monitor (TLM200), 80"

Name Value
Type Monitor


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