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 NMEA 2000 Adapter - TLA100-01
$398.83 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$93.73 -
Raritan Holding Tank Monitor - 1510012
$683.68 -
Maretron Tank Level Sender - TLM150-01
$351.58 -
Vetus Universal Tank Float Sensor
$211.18 - $311.08 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$103.20 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$73.50 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$373.18 -
LIST 3-Level Waste Tank Monitor - TM-332111
$320.55 -
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 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$366.43 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$101.20 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$365.08$169.35 -
Raritan TankAssure Control Panel with Sensor - 15600
$795.76 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$209.85 -
Vetus Fuel Tank Float Sensor - FSENSOR
$70.78 -
Raritan Tank Sensor - Float Style - STCFL
$145.03 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$439.33$189.60 -
SCAD Technologies Adapter Plate - 10029
$55.93 -
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 -
LIST 3-Level Water Tank Monitor - TM-331111
$323.25 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$189.58 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$439.33$189.60 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$47.83 -
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 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$42.45 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,152.50 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$193.65$126.08 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$371.83$169.35 -
Groco Tank Level Sensor Assembly - 450 ASSY
$429.88 -
Raritan TankAssure Sensor Kit - 15610
$482.55
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!