Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$289.63 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$371.41 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.49 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$110.56 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$597.05 - $614.09 -
Dometic DTM01 Holding Tank Monitor - 9108688891
$254.38 -
Dometic Multi-Level Tank Monitor System
$563.17 -
Raritan TankAssure Control Panel with Sensor - 15600
$893.14 -
SCAD Technologies Internal Tank Sensor - 10021
$147.22 -
Vetus Ultrasonic Fluid Level Sensor
$281.17 - $295.27 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$107.74 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$389.74 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$90.84 -
Groco Tank Level Sensor - 08-0004-02
$346.03 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$120.45 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$317.21 - $570.01 -
Vetus Universal Tank Float Sensor
$248.74 - $365.77 -
LIST 3-Level Waste Tank Monitor - TM-332111
$337.59 -
Raritan TankAssure Sensor Kit - 15610
$551.91 -
Raritan Tank Sensor - Float Style - STCFL
$155.68 -
Thetford Tecma Field-Effect Tank Sensor
$189.47 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$757.56 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$139.64 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$133.21 -
Raritan Tank Sensor Module Kit - 15101
$175.42 -
Blue Sea Mini OLED Tank Meter
$73.90 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$382.69 -
Vetus Fuel Tank Float Sensor - FSENSOR
$83.77 -
LIST 3-Level Water Tank Monitor - TM-331111
$337.59 -
SCAD Technologies Adapter Plate - 10029
$54.16 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$205.03 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$417.94 -
Maretron Tank Level Sender - TLM150-01
$415.12 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$127.50 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$506.42 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$468.03 -
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 NMEA2000 Adapter - 15630
$498.31 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.93 -
Groco Tank Level Sensor Assembly - 450 ASSY
$451.78 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$219.15 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$202.23$121.57
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!