Welcome to Defender Canada! 
Tank Monitors
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Faria Euro Black Potable Water Tank Level Gauge - 12831
$43.38 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$48.88 -
SCAD Technologies Adapter Plate - 10029
$53.02 -
9% off
Blue Sea Mini OLED Tank Meter
$72.34$65.17 -
Vetus Fuel Tank Float Sensor - FSENSOR
$72.34 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$79.26 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$84.76 -
SCAD Technologies Internal Tank Sensor - 10021
$102.70 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$105.46 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$112.04 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$197.94$119.00 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$124.80 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$130.39 -
64% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$373.18$131.01 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$136.69 -
Raritan Tank Sensor - Float Style - STCFL
$146.86 -
Raritan Tank Sensor Module Kit - 15101
$171.70 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$190.68 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$449.08$193.80 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$203.44 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$214.50 -
Vetus Universal Tank Float Sensor
$215.86 - $317.98 -
Dometic DTM01 Holding Tank Monitor - 313002311
$226.90 -
Vetus Ultrasonic Fluid Level Sensor
$243.46 - $254.50 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$254.50 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$310.48 - $762.20 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$310.48 - $749.94 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$321.78 -
LIST 3-Level Water Tank Monitor - TM-331111
$330.42 -
LIST 3-Level Waste Tank Monitor - TM-332111
$330.42 -
Groco Tank Level Sensor - 08-0004-02
$342.82 -
9% offBlue Sea Systems M2 OLED Digital Tank Monitor - 1839
$381.46$343.38 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$361.11 -
Maretron Tank Level Sender - TLM150-01
$361.11 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$374.56 -
Groco Tank Level Sensor Assembly - 450 ASSY
$447.70 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$458.09 -
Raritan TankAssure Sensor Kit - 15610
$493.26 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$495.66 - $947.39 -
Dometic Multi-Level Tank Monitor System
$500.14 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$530.54 -
Raritan TankAssure NMEA2000 Adapter - 15630
$540.16 -
14% offRaritan TankAssure Control Panel with Sensor - 15600
$813.43$691.51 -
Raritan Holding Tank Monitor - 1510012
$698.86 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$741.45 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$1,148.76 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,230.68
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!