Welcome to Defender Canada! 
Tank Monitors
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Dometic DTM04 TankWatch 4-Level Tank Monitor System
$574.49 - $591.53 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.49 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$371.41 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$389.74 -
Dometic DTM01 Holding Tank Monitor - 313002311
$244.51 -
Dometic Multi-Level Tank Monitor System
$542.02 -
SCAD Technologies Internal Tank Sensor - 10021
$147.22 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$506.42 - $967.98 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$107.74 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$317.21 - $778.76 -
Vetus Universal Tank Float Sensor
$248.74 - $365.77 -
Groco Tank Level Sensor - 08-0004-02
$350.26 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$417.94 -
Blue Sea Mini OLED Tank Meter
$73.90 -
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 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$139.64 -
Maretron Tank Level Sender - TLM150-01
$415.12 -
Vetus Ultrasonic Fluid Level Sensor
$260.02 - $281.17 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$120.45 -
Raritan Tank Sensor Module Kit - 15101
$175.42 -
Vetus Fuel Tank Float Sensor - FSENSOR
$83.77 -
Raritan Tank Sensor - Float Style - STCFL
$155.68 -
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 -
66% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$458.83$152.17 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$205.03 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$90.84 -
SCAD Technologies Adapter Plate - 10029
$54.16 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$110.56 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$289.63 -
LIST 3-Level Waste Tank Monitor - TM-332111
$337.59 -
Raritan Holding Tank Monitor - 1510012
$714.04 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$1,173.72 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$468.03 -
44% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$202.23$111.49 -
Groco Tank Level Sensor Assembly - 450 ASSY
$457.42 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$44.31 -
Raritan TankAssure Control Panel with Sensor - 15600
$893.14 -
Raritan TankAssure Sensor Kit - 15610
$551.91 -
Raritan TankAssure NMEA2000 Adapter - 15630
$498.31 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.93 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,279.16 -
Thetford Tecma Field-Effect Tank Sensor
$189.47
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!