Welcome to Defender Canada! 
Tank Monitors
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Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$315.58 -
Maretron Tank Level Sender - TLM150-01
$364.58 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$595.70 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$97.18 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$85.98 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.38 -
LIST 3-Level Waste Tank Monitor - TM-332111
$332.40 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$262.38 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$503.22 -
LIST 3-Level Water Tank Monitor - TM-331111
$335.20 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$217.60 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$200.80$130.73 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$196.58 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$118.20 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$368.78 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$76.20 -
Dometic Multi-Level Tank Monitor System
$475.18 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$104.93 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$1,071.37 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$121.70 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$249.57 - $612.47 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$249.57 - $595.72 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$398.25 - $761.28 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$464.72 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$138.66 -
Raritan Tank Sensor - Float Style - STCFL
$150.38 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$378.58$175.60 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$455.58$196.60 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$385.58$175.60 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$455.58$196.60 -
SCAD Technologies Adapter Plate - 10029
$57.98 -
SCAD Technologies Internal Tank Sensor - 10021
$102.78 -
Blue Sea Mini OLED Tank Meter
$69.18 - $73.38 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
Groco Tank Level Sensor - 08-0004-02
$340.78 -
Groco Tank Level Sensor Assembly - 450 ASSY
$445.78 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
Vetus Universal Tank Float Sensor
$218.98 - $322.58 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$44.00 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,232.20 -
Raritan Tank Sensor Module Kit - 15101
$174.18 -
Raritan TankAssure Control Panel with Sensor - 15600
$825.21 -
Raritan TankAssure Sensor Kit - 15610
$500.40 -
Raritan TankAssure NMEA2000 Adapter - 15630
$547.98 -
Raritan Holding Tank Monitor - 1510012
$708.98 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$379.98 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.58 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.38
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!