Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$275.18 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$202.85 -
9% offDometic DTM04 TankWatch 4-Level Tank Monitor System
$574.49 - $591.53$517.11 - $532.45 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$352.87 -
9% offRaritan TankAssure Control Panel with Sensor - 15600
$893.14$803.89 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$397.08 -
9% offRaritan Tank Sensor - Stick-On Style - STCTSA
$107.74$97.03 -
SCAD Technologies Internal Tank Sensor - 10021
$139.89 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$110.56 -
9% offDometic DTM01 Holding Tank Monitor - 313002311
$244.51$220.12 -
9% offVetus Universal Tank Float Sensor
$248.74 - $365.77$236.34 - $347.51 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$86.33 -
9% offGroco Tank Level Sensor - 08-0004-02
$346.03$311.49 -
9% offVetus Ultrasonic Fluid Level Sensor
$281.17 - $295.27$265.81 - $267.14 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$114.46 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$139.64 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$133.21 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$757.56 -
9% offRaritan Tank Sensor Module Kit - 15101
$175.42$157.94 -
14% offLIST 3-Level Waste Tank Monitor - TM-332111
$337.59$287.05 -
Thetford Tecma Field-Effect Tank Sensor
$189.47 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$317.21 - $778.76 -
9% offDometic Multi-Level Tank Monitor System
$542.02$487.88 -
9% off
Blue Sea Mini OLED Tank Meter
$73.90$66.57 -
SCAD Technologies Adapter Plate - 10029
$51.49 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$363.59 -
9% offVetus Fuel Tank Float Sensor - FSENSOR
$83.77$75.46 -
14% offLIST 3-Level Water Tank Monitor - TM-331111
$337.59$287.05 -
Raritan Tank Sensor - Float Style - STCFL
$147.93 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$127.50 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$506.42 - $967.98 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$194.81 -
9% offMaretron Tank Level Sender - TLM150-01
$415.12$373.67 -
9% offBlue Sea Systems M2 OLED Digital Tank Monitor - 1839
$389.74$350.83 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$468.03 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$317.21 - $766.23 -
9% offGroco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,279.16$2,051.31 -
9% offFaria Euro Black Potable Water Tank Level Gauge - 12831
$44.31$39.93 -
Raritan TankAssure Sensor Kit - 15610
$524.34 -
Raritan TankAssure NMEA2000 Adapter - 15630
$473.43 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$47.47 -
14% offLIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$219.15$186.36 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$202.23$121.57 -
9% off
Groco Tank Level Sensor Assembly - 450 ASSY
$451.78$406.66
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!