Dometic Tank Monitor panel and adjustable Probes
Dometic Tank Monitor panel and adjustable Probes
Dometic Tank Monitor Panel
Dometic Holding Tank Monitor Replacement Probes

Dometic Holding Tank Monitor DTM


Dometic Holding Tank Monitor DTM


Eliminate the risk of overfilling your holing tank, and always know the status with the Dometic/SeaLand DTM04 monitor. This monitor measures four levels in the waste tank, with panels noting empty, low, mid, and full levels. A continuous light indicates that power is on, and a full-tank shutdown option prevents the risk of overflow. These panels can connect with a DTD Tank Discharge Control to offer convenient holding tank discharge options. The Dometic Holding Tank Monitor was formally known as the Sealand Tank Watch.  A trim bezel is available to convert from the old Tank watch (TW) to the new Dometic Tank Monitor (DTM)



  • Wall-mountable display panel features four-color LED indicator for easy monitoring
  • Optional relay to shut down electric toilets in the event of a full tank is available
  • Probe assembly options fit tanks up to 22 in. (55.9 cm) and 45 in. (114.3 cm) tall
  • 12 V DC or 24 V DC operation
  • Includes one set of tank probes

Dometic Tank Monitor Manual



Additional information

Weight N/A
Dimensions N/A

With Vent, Without Vent

Max Probe Depth

22", 45"


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