Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$253.03 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$205.78 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$519.02 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$304.33 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$82.93 -
Groco Tank Level Sensor - 08-0004-02
$328.63 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$574.44 -
Dometic Multi-Level Tank Monitor System
$489.28 -
Dometic DTM01 Holding Tank Monitor - 313002311
$221.98 -
SCAD Technologies Internal Tank Sensor - 10021
$99.13 -
Maretron Tank Level Sender - TLM150-01
$373.18 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$377.23 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$80.25 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$93.73 -
Raritan Holding Tank Monitor - 1510012
$683.68 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$93.75 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$373.18 -
LIST 3-Level Waste Tank Monitor - TM-332111
$320.55 -
Vetus Universal Tank Float Sensor
$211.18 - $311.08 -
Vetus Ultrasonic Fluid Level Sensor
$238.18 - $248.98 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$240.68 - $590.61 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$133.73 -
Blue Sea Mini OLED Tank Meter
$70.78 -
Raritan Tank Sensor Module Kit - 15101
$167.98 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$101.20 -
Raritan TankAssure Control Panel with Sensor - 15600
$795.76 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$366.43 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$209.85 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$365.08$169.35 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$439.33$189.60 -
Raritan Tank Sensor - Float Style - STCFL
$145.03 -
Vetus Fuel Tank Float Sensor - FSENSOR
$70.78 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$439.33$189.60 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$118.05 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$240.68 - $585.15 -
SCAD Technologies Adapter Plate - 10029
$55.93 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$216.58 -
LIST 3-Level Water Tank Monitor - TM-331111
$323.25 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$47.83 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$371.83$169.35 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$1,123.80 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$384.05 - $734.11 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$448.14 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$193.65$126.08 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$42.45 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,152.50 -
Raritan TankAssure Sensor Kit - 15610
$482.55 -
Raritan TankAssure NMEA2000 Adapter - 15630
$528.43
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!