Tank Monitors

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

    $260.02
    5
  2. Dometic DTM04 TankWatch 4-Level Tank Monitor System

    $542.06
    1
  3. SCAD TM2 Tank Monitor for Two Tanks - 10041

    $207.85
    2
  4. Maretron NMEA 2000 Tank Level Monitor - TLM100-01

    $346.03
    3
  5. Dometic DTM01 Holding Tank Monitor - 313002311

    $231.82
    1
  6. Blue Sea Systems M2 OLED Digital Tank Monitor - 1839

    $389.74
    0
  7. Maretron Tank Level NMEA 2000 Adapter - TLA100-01

    $388.33
    0
  8. Groco Tank Level Sensor - 08-0004-02

    $350.26
    0
  9. Veratron Waste Water Level Sensor with Sealing Kit #930

    $506.42 - $967.98
    0
  10. Veratron Fresh Water Level Sensor with Sealing Kit #370

    $317.21 - $778.76
    0
  11. Vetus Ultrasonic Fluid Level Sensor

    $248.74 - $260.02
  12. Veratron VDO Fresh Water Level Sender - 226-828-001-001K

    $757.56
    1
  13. Raritan Tank Sensor - Stick-On Style - STCTSA

    $107.74
    1
  14. SCAD Technologies Internal Tank Sensor - 10021

    $104.92
    1
  15. Vetus Universal Tank Float Sensor

    $220.54 - $324.88
  16. Maretron TFT-5H-Focus Tube Kit - TFT-5H

    $85.20
    1
  17. LIST 3-Level Waste Tank Monitor - TM-332111

    $337.59
    2
  18. Blue Sea Mini OLED Tank Meter

    $73.90
    0
  19. Dometic Multi-Level Tank Monitor System

    $511.00
    0
  20. Raritan Tank Sensor - Float Style - STCFL

    $150.04
    0
  21. Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H

    $120.45
    0
  22. SCAD Technologies Adapter Plate - 10029

    $54.16
    0
  23. Raritan Tank Sensor Module Kit - 15101

    $175.42
  24. Raritan Holding Tank Monitor Indicator Panel - 1520012

    $382.69
  25. Victron Energy GX Tank 140 System Monitoring - BPP920140100

    $139.64
    1
  26. Maretron Tank Level Sender - TLM150-01

    $388.33
    1
  27. Vetus Fuel Tank Float Sensor - FSENSOR

    $73.90
  28. 64% off

    Oceanic Systems 4-20mA Tank Level Adaptor - 4291

    $381.28
    $133.84
    0
  29. LIST 3-Level Water Tank Monitor - TM-331111

    $337.59
    0
  30. LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111

    $219.15
    0
  31. 56% off

    Oceanic Systems Deck-Mounted Water Gauge - 5250-W

    $458.83
    $198.00
    0
  32. Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1

    $205.03
    0
  33. Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100

    $468.03
    0
  34. 39% off

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

    $202.23
    $121.57
    0
  35. Raritan TankAssure Control Panel with Sensor - 15600

    $831.10
  36. Raritan TankAssure Sensor Kit - 15610

    $503.97
  37. Raritan TankAssure NMEA2000 Adapter - 15630

    $551.89
  38. Raritan Tank Monitor Indicator Panel Wire Harness - 152WH

    $49.93

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!