Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$289.63 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$542.06 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.49 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$389.74 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$371.41 -
Dometic Multi-Level Tank Monitor System
$511.00 -
LIST 3-Level Waste Tank Monitor - TM-332111
$337.59 -
Groco Tank Level Sensor - 08-0004-02
$350.26 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$417.94 -
Dometic DTM01 Holding Tank Monitor - 313002311
$231.82 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$757.56 -
SCAD Technologies Internal Tank Sensor - 10021
$147.22 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$107.74 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$506.42 - $967.98 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$90.84 -
Vetus Ultrasonic Fluid Level Sensor
$248.74 - $260.02 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$317.21 - $778.76 -
Vetus Universal Tank Float Sensor
$220.54 - $324.88 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$133.21 -
Raritan Tank Sensor - Float Style - STCFL
$150.04 -
Blue Sea Mini OLED Tank Meter
$73.90 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$120.45 -
Raritan Tank Sensor Module Kit - 15101
$175.42 -
Maretron Tank Level Sender - TLM150-01
$415.12 -
SCAD Technologies Adapter Plate - 10029
$54.16 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$139.64 -
LIST 3-Level Water Tank Monitor - TM-331111
$337.59 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$219.15 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$382.69 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$127.50 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$317.21 - $766.23 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$458.83$198.00 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$205.03 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$110.56 -
Raritan Holding Tank Monitor - 1510012
$714.04 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.90 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$1,173.72 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$468.03 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$202.23$121.57 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$44.31 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,279.16 -
Raritan TankAssure Control Panel with Sensor - 15600
$831.10 -
Raritan TankAssure Sensor Kit - 15610
$503.97 -
Raritan TankAssure NMEA2000 Adapter - 15630
$551.89 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.93 -
Groco Tank Level Sensor Assembly - 450 ASSY
$457.42
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!