Welcome to Defender Canada! 
Tank Monitors
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Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,232.20 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$1,078.40 -
Raritan TankAssure Control Panel with Sensor - 15600
$825.21 -
Raritan Holding Tank Monitor - 1510012
$708.98 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$599.35 -
Raritan TankAssure NMEA2000 Adapter - 15630
$547.98 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$503.22 -
Raritan TankAssure Sensor Kit - 15610
$500.40 -
Dometic Multi-Level Tank Monitor System
$475.18 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$464.72 -
Groco Tank Level Sensor Assembly - 450 ASSY
$445.78 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$400.50 - $766.10 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$379.98 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$368.78 -
Maretron Tank Level Sender - TLM150-01
$364.58 -
Groco Tank Level Sensor - 08-0004-02
$340.78 -
LIST 3-Level Water Tank Monitor - TM-331111
$335.20 -
LIST 3-Level Waste Tank Monitor - TM-332111
$332.40 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$315.58 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$262.38 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$250.75 - $599.35 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$250.75 - $616.23 -
Vetus Ultrasonic Fluid Level Sensor
$246.98 - $258.18 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
Vetus Universal Tank Float Sensor
$218.98 - $322.58 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$217.60 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.38 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$455.58$196.60 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$455.58$196.60 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$196.58 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$385.58$175.60 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$378.58$175.60 -
Raritan Tank Sensor Module Kit - 15101
$174.18 -
Raritan Tank Sensor - Float Style - STCFL
$150.38 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$138.66 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$200.80$130.73 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$121.95 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$107.00 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$105.07 -
SCAD Technologies Internal Tank Sensor - 10021
$102.78 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$97.18 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$85.98 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$76.20 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.38 -
Blue Sea Mini OLED Tank Meter
$69.18 - $73.38 -
SCAD Technologies Adapter Plate - 10029
$57.98 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.58
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!