Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$262.38 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.38 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$85.98 -
Dometic Multi-Level Tank Monitor System
$475.18 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$315.58 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$503.22 -
SCAD Technologies Internal Tank Sensor - 10021
$102.78 -
Raritan Holding Tank Monitor - 1510012
$708.98 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$539.86 -
Groco Tank Level Sensor - 08-0004-02
$340.78 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$368.78 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$97.18 -
LIST 3-Level Waste Tank Monitor - TM-332111
$332.40 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$118.20 -
Vetus Universal Tank Float Sensor
$218.98 - $322.58 -
Maretron Tank Level Sender - TLM150-01
$364.58 -
Raritan Tank Sensor Module Kit - 15101
$174.18 -
Vetus Ultrasonic Fluid Level Sensor
$246.98 - $258.18 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$217.60 -
SCAD Technologies Adapter Plate - 10029
$57.98 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$95.08 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$76.20 -
Raritan TankAssure Control Panel with Sensor - 15600
$825.21 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$379.98 -
Blue Sea Mini OLED Tank Meter
$66.38 - $67.78 -
Raritan Tank Sensor - Float Style - STCFL
$150.38 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$138.66 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.38 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$455.58$196.60 -
LIST 3-Level Water Tank Monitor - TM-331111
$335.20 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$196.58 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$378.58$175.60 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$455.58$196.60 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$226.12 - $550.80 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.58 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$200.80$130.73 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$385.58$175.60 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$756.60 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$91.60 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$226.12 - $555.00 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$360.94 - $689.82 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$464.72 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$44.00 -
Raritan TankAssure Sensor Kit - 15610
$500.40 -
Raritan TankAssure NMEA2000 Adapter - 15630
$547.98 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,232.20
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!