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 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$506.42 - $967.98 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$417.94 -
Dometic DTM01 Holding Tank Monitor - 313002311
$231.82 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$317.21 - $778.76 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$757.56 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$107.74 -
Vetus Universal Tank Float Sensor
$220.54 - $324.88 -
SCAD Technologies Internal Tank Sensor - 10021
$147.22 -
Vetus Ultrasonic Fluid Level Sensor
$248.74 - $260.02 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$90.84 -
Blue Sea Mini OLED Tank Meter
$73.90 -
Raritan Tank Sensor - Float Style - STCFL
$150.04 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$120.45 -
Maretron Tank Level Sender - TLM150-01
$415.12 -
Raritan Tank Sensor Module Kit - 15101
$175.42 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$139.64 -
SCAD Technologies Adapter Plate - 10029
$54.16 -
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 -
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 -
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 -
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
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!