Welcome to Defender Canada! 
Tank Monitors
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Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$47.83 -
SCAD Technologies Adapter Plate - 10029
$55.93 -
9% off
Blue Sea Mini OLED Tank Meter
$70.78$63.76 -
Vetus Fuel Tank Float Sensor - FSENSOR
$70.78 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$81.60 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$82.93 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$93.73 -
SCAD Technologies Internal Tank Sensor - 10021
$99.13 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$115.35 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$193.65$116.43 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$127.57 -
64% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$365.08$128.17 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$133.73 -
Raritan Tank Sensor - Float Style - STCFL
$145.03 -
Raritan Tank Sensor Module Kit - 15101
$167.98 -
9% offSCAD TM2 Tank Monitor for Two Tanks - 10041
$205.78$185.26 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$439.33$189.60 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$196.33 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$209.85 -
Vetus Universal Tank Float Sensor
$211.18 - $311.08 -
Dometic DTM01 Holding Tank Monitor - 313002311
$221.98 -
Vetus Ultrasonic Fluid Level Sensor
$238.18 - $248.98 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$253.03 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$303.74 - $745.65 -
LIST 3-Level Waste Tank Monitor - TM-332111
$323.25 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$331.33 -
Groco Tank Level Sensor - 08-0004-02
$335.38 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$366.43 -
Maretron Tank Level Sender - TLM150-01
$371.83 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$371.83 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$373.18 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$448.14 -
Raritan TankAssure Sensor Kit - 15610
$482.55 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$484.90 - $926.81 -
Dometic Multi-Level Tank Monitor System
$489.28 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$519.02 -
Raritan TankAssure NMEA2000 Adapter - 15630
$528.43 -
Raritan Holding Tank Monitor - 1510012
$683.68 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$725.35 -
Raritan TankAssure Control Panel with Sensor - 15600
$795.76
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!