Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$262.38 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.38 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$315.58 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$85.98 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$503.22 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$539.86 -
Dometic Multi-Level Tank Monitor System
$475.18 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
SCAD Technologies Internal Tank Sensor - 10021
$102.78 -
LIST 3-Level Waste Tank Monitor - TM-332111
$332.40 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$97.18 -
Groco Tank Level Sensor - 08-0004-02
$340.78 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$118.20 -
Raritan Holding Tank Monitor - 1510012
$708.98 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$76.20 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
Vetus Universal Tank Float Sensor
$218.98 - $322.58 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$368.78 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$226.12 - $555.00 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$138.66 -
Vetus Ultrasonic Fluid Level Sensor
$246.98 - $258.18 -
Blue Sea Mini OLED Tank Meter
$73.38 -
Raritan TankAssure Control Panel with Sensor - 15600
$825.21 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$95.08 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$217.60 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$379.98 -
Raritan Tank Sensor Module Kit - 15101
$174.18 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$378.58$175.60 -
Raritan Tank Sensor - Float Style - STCFL
$150.38 -
Maretron Tank Level Sender - TLM150-01
$364.58 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$455.58$196.60 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$91.60 -
LIST 3-Level Water Tank Monitor - TM-331111
$335.20 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.38 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$196.58 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.58 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$455.58$196.60 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$360.94 - $689.82 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$464.72 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$200.80$130.73 -
Raritan TankAssure Sensor Kit - 15610
$500.40 -
Raritan TankAssure NMEA2000 Adapter - 15630
$547.98 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$385.58$175.60
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!