Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$254.50 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$530.54 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$203.44 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$338.68 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$84.76 -
Dometic DTM01 Holding Tank Monitor - 313002311
$226.90 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$380.08 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$381.46 -
Groco Tank Level Sensor - 08-0004-02
$342.82 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$310.48 - $762.20 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$495.66 - $947.39 -
Vetus Ultrasonic Fluid Level Sensor
$243.46 - $254.50 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$741.45 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$105.46 -
SCAD Technologies Internal Tank Sensor - 10021
$102.70 -
Vetus Universal Tank Float Sensor
$215.86 - $317.98 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$83.40 -
Raritan Tank Sensor Module Kit - 15101
$171.70 -
LIST 3-Level Waste Tank Monitor - TM-332111
$330.42 -
Raritan Tank Sensor - Float Style - STCFL
$146.86 -
Blue Sea Mini OLED Tank Meter
$72.34 -
Dometic Multi-Level Tank Monitor System
$500.14 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$117.90 -
SCAD Technologies Adapter Plate - 10029
$53.02 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$374.56 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$136.69 -
Maretron Tank Level Sender - TLM150-01
$380.08 -
64% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$373.18$131.01 -
LIST 3-Level Water Tank Monitor - TM-331111
$330.42 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$214.50 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$200.68 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$449.08$193.80 -
Vetus Fuel Tank Float Sensor - FSENSOR
$72.34 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$458.09 -
Raritan TankAssure Control Panel with Sensor - 15600
$813.43 -
Raritan TankAssure Sensor Kit - 15610
$493.26 -
Raritan TankAssure NMEA2000 Adapter - 15630
$540.16 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$48.88 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$197.94$119.00
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!