Tank Monitors

  1. SCAD TM1 Tank Monitor with External Sensor Strip - 10040

    $186.99
    2
  2. SCAD TM2 Tank Monitor for Two Tanks - 10041

    $151.99
    1
  3. SCAD Technologies External Tape-On Tank Sensor - 10022

    $60.99
    0
  4. Dometic DTM04 TankWatch 4-Level Tank Monitor System

    $347.99
    0
  5. Groco Tank Level Sensor - 08-0004-02

    $324.99
    0
  6. Veratron VDO Fresh Water Level Sender - 226-828-001-001K

    $385.19
    1
  7. Dometic DTM01 Holding Tank Monitor - 313002311

    $156.99
    0
  8. Blue Sea Systems M2 OLED Digital Tank Monitor - 1839

    $275.99
    0
  9. SCAD Technologies Internal Tank Sensor - 10021

    $72.99
    0
  10. Raritan Tank Sensor - Stick-On Style - STCTSA

    $68.99
    0
  11. Blue Sea Systems VSM 422 Vessel Systems Monitor Tank Sender

    $113.99 - $114.99
  12. Dometic Multi-Level Tank Monitor System

    $338.99
    0
  13. Blue Sea Mini OLED Tank Meter

    $46.99 - $47.99
    0
  14. Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G

    $67.49
    0
  15. 10% off

    LIST 3-Level Waste Tank Monitor - TM-332111

    $236.99
    $213.29
    1
  16. Vetus Ultrasonic Fluid Level Sensor

    $175.99 - $183.99
  17. Raritan Tank Sensor - Float Style - STCFL

    $106.99
    0
  18. LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111

    $152.99
    0
  19. Garmin GFS 10 Fuel Sensor for Gas Engines Only - 010-00671-00

    $209.99
    0
  20. Vetus Universal Tank Float Sensor

    $155.99 - $229.99
  21. Vetus Inspection Lid

    $18.00 - $65.99
  22. 35% off

    LIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111

    $142.99
    $92.94
    0
  23. Vetus Fuel Tank Float Sensor - FSENSOR

    $51.99
  24. Vetus Diesel Inspection Lid - ILT120B

    $89.99
  25. Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501

    $492.29
    0
  26. Veratron Fresh Water Level Sensor with Sealing Kit #370

    $161.09 - $395.99
    0
  27. Veratron Fresh Water Level Sensor with Sealing Kit #930

    $161.09 - $392.99
    0
  28. Veratron Waste Water Level Sensor with Sealing Kit #930

    $257.39 - $492.29
    0
  29. 20% off

    LIST 3-Level Water Tank Monitor - TM-331111

    $236.99
    $189.59
    0
  30. Groco Tank Level Sensor Assembly - 450 ASSY

    $331.99
    0

About Tank Monitors

Tank Monitors

Monitoring water tank levels can be tricky and gauges are essential on boats. Some tanks must stay full while other tanks need to be bled as the gauge creeps up. A wide variety of single level gauges available at Defender are designed to monitor water tank levels in individual tanks. LED panel marine tank monitor systems and sensors do the same thing in multiples. Monitors basically offer one base for keeping an eye on all your tanks at the flip of a switch - even at night!