Welcome to Defender Canada! 
Tank Monitors
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Raritan TankAssure Control Panel with Sensor - 15600
$795.76 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$725.35 -
Raritan Holding Tank Monitor - 1510012
$683.68 -
Raritan TankAssure NMEA2000 Adapter - 15630
$528.43 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$519.02 -
Dometic Multi-Level Tank Monitor System
$489.28 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$484.90 - $926.81 -
Raritan TankAssure Sensor Kit - 15610
$482.55 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$448.14 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$373.18 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$371.83 -
Maretron Tank Level Sender - TLM150-01
$371.83 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$366.43 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$331.33 -
Groco Tank Level Sensor - 08-0004-02
$328.63 -
LIST 3-Level Waste Tank Monitor - TM-332111
$323.25 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$303.74 - $745.65 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$253.03 -
Vetus Ultrasonic Fluid Level Sensor
$238.18 - $248.98 -
Dometic DTM01 Holding Tank Monitor - 313002311
$221.98 -
Vetus Universal Tank Float Sensor
$211.18 - $311.08 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$211.18 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$209.85 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$439.33$189.60 -
9% offSCAD TM2 Tank Monitor for Two Tanks - 10041
$205.78$185.26 -
Raritan Tank Sensor Module Kit - 15101
$167.98 -
Raritan Tank Sensor - Float Style - STCFL
$145.03 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$133.73 -
64% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$365.08$128.17 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$127.57 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$193.65$116.43 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$108.60 -
SCAD Technologies Internal Tank Sensor - 10021
$99.13 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$93.73 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$82.93 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$81.60 -
Vetus Fuel Tank Float Sensor - FSENSOR
$70.78 -
9% off
Blue Sea Mini OLED Tank Meter
$70.78$63.76 -
SCAD Technologies Adapter Plate - 10029
$55.93 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$47.83
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!